September 11—Today’s Top Stories from ABC News

--Wednesday marks 18 years since hijackers took over jetliners that crashed into the twin towers of the World Trade Center, and the Pentagon, and crashed in Shanksville, Pennsylvania. Nearly 3-thousand people were killed; more than 6-thousand injured.  A moment of silence will be observed in New York City at 8:46am ET, marking the time American Airlines Flight 11 struck the North Tower of the World Trade Center. President Trump will help mark observances at the Pentagon. Secretary of Defense Mark Esper and Joint Chiefs of Staff Chairman Gen. Joseph Dunford Jr. also deliver remarks.
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VOTE 2020 POLL (***EMBARGOED TIL 9/11 7AM ET***)
Five Democratic contenders lead Donald Trump in head-to-head matchups in the latest ABC News/Washington Post poll, with several widening their advantage since July. Concerns about the economy, which have pushed down the president’s job approval rating, are a factor. Among those tested in the survey, Joe Biden leads Trump by 16 percentage points among all adults, 54-38 percent, essentially the same as two months ago. Bernie Sanders leads by 12 points, up from 6 in July; as does Elizabeth Warren by 11 points, compared with a slight 7 points previously. Kamala Harris leads by 10 points, while Pete Buttigieg has a slight 6-point edge.  

VOTE 2019
Results were coming in Tuesday night for the last undecided race of the 2018 midterms. North Carolina's 9th Congressional District has been solidly Republican, but the tally from Tuesday's special election pitting Republican Dan Bishop and Democrat Dan McCready was close in the hours after the polls closed.

Did John Bolton resign or was he fired as national security advisor? According to the White House, President Trump asked for Bolton to resign and the president received that Tuesday morning. But Bolton insists the president never asked for his resignation.

American communities rallying to send hurricane Dorian relief supplies to the Bahamas include Chester, Pennsylvania, where residents have given more than 20,000 pounds of donations that will soon be shipped out.

Forecasters are currently monitoring three systems that are brewing in the ocean, and one of them could have effects on South Florida as soon as this weekend.

Authorities in Wisconsin hold a news conference Wednesday to reveal search warrants and arrests relating to the illegal manufacture of THC vaping cartridges in Kenosha County.
--Oregon Senator Ron Wyden will introduce a bill to add an excise tax on e-cigarettes and other "alternative nicotine products" to tax them at a rate equal to the federal cigarette tax. 

The Kremlin confirmed that a former Russian official had worked as an employee in the country's presidential administration but sought to downplay the idea he could have been a CIA spy, dismissing American media coverage as "pulp fiction."  Secretary of State Mike Pompeo called the reporting "materially inaccurate."

There are reports of an animal that may be a chimpanzee on the loose in Galveston County, Texas, terrorizing dogs and other pets according to an animal shelter director and a parks official.

Countdown to the third Democratic presidential primary will feature for the first time the top polling candidates on the same stage. Thursday's debate will take place at Texas Southern University, a public, historically black university in Houston.

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