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Prenatal exposure to ambient air pollution was associated with an increased risk of autism spectrum disorder, a new study finds. Pregnant women in Vancouver who were exposed to the highest level of environmental nitric oxide, an airborne, traffic-related pollutant, were more likely to give birth to children later diagnosed with autism, the researchers say.Autism spectrum disorder, a developmental disability, is characterized by problems with communication and social interaction with accompanying repetitive behavior patterns.Lief Pagalan, lead author of the study and a member of the faculty of health sciences at Simon Fraser University, cautions that the study, published Monday in the medical journal JAMA Pediatrics, showed only an association between prenatal exposure to nitric oxide and autism rates. It did not prove that air pollution caused autism.Experts emphasize that the exact causes of autism remain unknown, and some say the researchers in this study did not analyze every potential risk factor.Still, the research "adds to the growing concern that there may be no safe levels of exposure to air pollution," Pagalan wrote in an email."Not only did we have access to rich data, enabling us to develop one of the largest studies to date, but we were also able to conduct this study in a city with relatively lower levels of air pollution," he said. 1375

President Donald Trump is ready to oust Lt. Gen. H.R. McMaster and find a new national security adviser before the North Korea meetings in May, multiple sources told CNN Thursday.The move may be delayed because there's no final decision on a replacement, sources say. The timing of an announcement is unclear -- one source said it could come as soon as Friday, though others say that is unlikely.White House press secretary Sarah Sanders pushed back on reports that McMaster may be headed out the door in a tweet, saying,"Just spoke to @POTUS and Gen. H.R. McMaster - contrary to reports they have a good working relationship and there are no changes at the NSC."Any delay in the move is also because McMaster is trying to nail down his next steps, one of the sources said.The shake-ups come as Trump signaled this week that he's prepared to dismiss aides with whom he's clashed as he works to surround himself with advisers more aligned with his populist agenda and freewheeling style.On Tuesday, the President fired Secretary of State Rex Tillerson and told reporters at the White House he was near having his ideal team."I'm really at a point where we're getting very close to having the Cabinet and other things that I want," Trump told reporters on the South Lawn on Tuesday, moments after announcing Tillerson's firing.Amid speculation about McMaster's fate, CNN has reported that the three-star general has been in discussions with the Hoover Institution.As recently as March 8, the White House was denying reports that McMaster was on his way out, with Sanders declaring on "Fox & Friends" that "General McMaster's not going anywhere."Several sources told CNN that the push for a replacement comes after months of personal tension between McMaster and Trump.Trump has privately expressed irritation with McMaster stemming from differences in "personality and style," a senior Republican source said.The two have never gotten along, and Trump continues to chafe at McMaster's demeanor when he briefs him, feeling that he is gruff and condescending, according to a source who is familiar with his thinking.Sources with knowledge of McMaster's standing in the White House have repeatedly said that he has been on thin ice for months.There was discussion in the West Wing about replacing him last fall, but he ultimately survived because officials, including the President himself, were skeptical about the optics of appointing a third national security adviser in less than a year, several sources told CNN. Trump's first national security adviser, Michael Flynn, resigned within a month of taking the job amid controversy over his contact with Russian officials.McMaster was also retained at the time due to the White House's challenge attracting top talent for jobs in the administration due to Trump's "blacklist" of individuals who have criticized the President, his personality and the Russia investigation, according to a senior Republican source. 2990

Polls have officially opened in several states for the 2020 general election as Americans decide who will lead their country for the next four years.As of 7 a.m. ET, polls have opened in every state in the eastern time zone, and most of the polls in the central time zone have opened as well.In the final days, polling continued to show that President Donald Trump faces an uphill battle in his re-election bid against Democratic presidential nominee Joe Biden, as Trump trails by between 5 and 10 points in many national polls.However, he faces a smaller deficit in several key swing states. In Pennsylvania, which many analysts consider will be the "tipping point," Biden leads by anywhere from between four and seven points.While millions of Americans will cast their ballots on Tuesday, record numbers have already voted. According to Vox, about 98 million Americans voted early — whether in-person or by mail — as fears of the COVID-19 forced many to plan ahead.Vox also reports that nearly a dozen states have already seen 90% of the ballots cast compared to the 2016 election.Due to high numbers of mail-in ballots — and state procedures for counting them — there's a significant chance that analysts will be unable to project a winner for the presidency by Tuesday night or Wednesday morning.In Pennsylvania, officials could not begin processing and counting mail-in ballots until Tuesday morning, while other states like Florida allow some of that work to be done by election day.It's not just the presidency on the line on Tuesday. Democrats also believe they have a shot at taking control of the Senate. In order to do so, they would need to pick up a net of three Senate seats and likely account for a probable loss in Alabama, where Democratic Sen. Doug Jones is expected to lose to Republican challenger Tommy Tuberville. 1843

President Donald Trump decried New York's decision to paint a large "Black Lives Matter" mural on the city's famed Fifth Avenue on Wednesday, calling the mural a "symbol of hate."In late June, New York City Mayor Bill de Blasio announced that the mural would be painted on Fifth Avenue between 56th and 57th Streets — right in front of Trump Tower. Dozens of cities across the country have painted similar murals on city streets, following in the footsteps of Washington, D.C."NYC is cutting Police $'s by ONE BILLION DOLLARS, and yet the @NYCMayor is going to paint a big, expensive, yellow Black Lives Matter sign on Fifth Avenue, denigrating this luxury Avenue," Trump tweeted Wednesday morning. "This will further antagonize New York's Finest, who LOVE New York & vividly remember the horrible BLM chant, 'Pigs In A Blanket, Fry 'Em Like Bacon'. Maybe our GREAT Police, who have been neutralized and scorned by a mayor who hates & disrespects them, won't let this symbol of hate be affixed to New York's greatest street. Spend this money fighting crime instead!" 1082

PORT CHARLOTTE, Fla. -- A poor raccoon is expected to be OK after it got its head stuck in a can of Chef Boyardee ravioli. Officers with Charlotte County Animal Control in Florida took the raccoon to the Peace River Wildlife Center for help Monday after a resident found the animal in her backyard.The juvenile raccoon needed to be sedated so the can could be carefully clipped away and pulled off. He only had minor injuries. 444

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