After a tumultuous decade, the percentage of voters who identify as Republican or Democrat has remained stable, but there are big changes inside the numbers.
Donald Trump and congressional party leaders made no progress over resolving a federal shutdown that has left workers unpaid and sites closed.
No serious injuries were reported among the Republican members of Congress on the train, who were on their way to an annual retreat in West Virginia.
Casino mogul Steve Wynn, one of President Trump's key allies, says the claims against him are "preposterous"
Congress scrambles to prevent a potential US government shutdown ahead of Friday's midnight deadline.