The US Congress is at one of its most polarised levels in decades as Democrats stand firmly opposed to Donald Trump and Republican lawmakers close ranks behind the president.
Preliminary data suggests that Republican legislators have backed Trump this year more than any other president since the 1950s, according to Congressional Quarterly, which tracks US legislative activity.
The widening chasm between the two parties has made it harder for them to work together to pass legislation on hot-button issues such as immigration and, more recently, healthcare.
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