Joe Biden remains the favourite in the Democratic race - but there are question marks over whether he can beat Donald Trump.
President Donald Trump has appealed to his base by attacking four Democratic Congresswomen of colour.
With the House of Representatives taking the unusual approach of censuring a sitting president, attention will now turn to next week's testimony by Robert Mueller.
This overdue honour is a welcome sign of the growing power of Native Americans.
The president's policy achievements are distinctly ordinary, for a Republican, and his limited record may offer a good line of attack for opponents.
Long before Chasten Buttigieg became a 'not-so-secret weapon' in his husband Pete Buttigieg’s presidential campaign, another same-sex couple profoundly reshaped American social policy.
Legislation requiring that all criminal debt associated with a citizen's conviction be repaid would leave thousands of people unable to cast ballots.
The Wikileaks founder has been removed from the Ecuadorean embassy after nearly seven years.
Does the Electoral College encourage candidates to campaign in rural areas, as its supporters claim? And do electors actually filter the 'passions' of voters, as the founders wanted them to?
The US president as avant-garde provocateur.
From Julius Caesar to Adolf Hitler, history is replete with examples of emergency powers being used to damage the very constitutional order they were designed to protect.
The majority of US state legislatures are controlled by Republicans because legislative districts are drawn to favor them. Voters are catching on, but change will be slow.
A recent poll reports that two-thirds of white evangelical women still approve of the president.
Christian Bale is phenomenal as Dick Cheney, but that only makes it harder to capture his essence on film.
The most memorable moment of the night unfolded on the Democrat benches.
A corrosive ageism in Australian politics overvalues the new, while discounting experience. If the US and UK can see the value in older politicians, why can't we?
The viral video has caused widespread controversy. But while all sides are protesting their innocence, it raises important questions about America's violent past.
According to Gallup, 88% of Republicans currently approve of the president – so why's he so worried about his wall?
Has the relationship between the Trump brand and the US president's politics gone too far?
Trump, Schumer and Pelosi have fallen into a classic negotiation trap that often prevents deals from getting made, which has led to the shutdown stalemate.