Donald Trump’s odds of being impeached in his first term as US president have been slashed in the past few days.

However, in something of a twist, bookmakers still make him the favourite to win the 2020 presidential election.

The odds of Mr Trump being impeached from the Oval Office tumbled after his sacking last week of former FBI director James Comey.

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Mr Comey had been heading up an investigation into alleged interference by Russia in last year’s presidential election when he was fired.

Before the sacking, Irish bookmaker Paddy Power had Mr Trump of odds of 2/1 of being impeached, but since then it’s become more of a sure thing at 4/6.

A spokesman said: ‘We can attribute this to the news of Comey’s sacking. It is the shortest we’ve been for Trump to be impeached in his first term.’

Paddy Power said Mr Trump now has a 60% chance of being impeached during his first term of office.

Fellow bookmakers Bet365 and Betfair are slightly more optimistic about Mr Trump’s chances, offering odds of impeachment of 11/10.

Donald Trump’s is still favourite to win in 2020 (Picture: AP)

And yet Mr Trump remains the favourite to win the US presidential election outright with all the bookmakers, according to bookies comparison site Odds Checker, with odds varying from 2/1 up to 11/4.

However, Bet365 is offering odds of 5/4 that Mr Trump will resign the presidency in his first term.

BetFred is offering odds of 8/13 that Mr Trump will last his entire first term in office.