Donald Trump appears undaunted by criticism about Roy Moore, and has renewed his support for the Alabama politician on Twitter.
Trump has been widely criticised for supporting Moore, who has been accused of sexual misconduct towards a minor, in the Alabama senatorial race.
But, as the people of Alabama head to the polls to decide who will replace Jeff Sessions in the US Senate, Trump has come out once again in favour of the Republican, and chosen rival Doug Jones' support for abortion as a key line of attack.
Trump wrote: "The people of Alabama will do the right thing. Doug Jones is Pro-Abortion, weak on Crime, Military and Illegal Immigration, Bad for Gun Owners and Veterans and against the WALL.
"Jones is a Pelosi/Schumer Puppet. Roy Moore will always vote with us.
"VOTE ROY MOORE!"
Polls opened in Alabama at 7am local time (1pm GMT) and will close at 7pm GMT.