Joe Biden, the former Vice President, is a front-runner in the Democratic race to be the party’s presidential nominee.
He has played up his 36-year tenure in the US Senate on the campaign trail – but some of the achievements he has touted over the years are now coming back to haunt him.
One in particular, a 1994 crime bill which Mr Biden helped to write, has become a point of focus after Donald Trump began tweeting about it this week.
“Anyone associated with the 1994 Crime Bill will not have a chance of being elected,” Mr Trump tweeted. “In particular, African Americans will not be able to vote for you. I, on the other hand, was responsible for Criminal Justice Reform, which had tremendous…