There are two GOP front-runners named Eric in that race – former governor Eric Greitens and state Attorney General Eric Schmitt. Both of them have seemed to assume that they were endorsed by Mr Trump.
There is also a third GOP candidate named Eric McElroy on the Republican primary ballot.
Taking to Twitter, Mr Schmitt wrote: “I’m grateful for president Trump’s endorsement.”
However, Mr Greitens also announced that he was “honoured to receive president Trump’s endorsement”. “I just had a great phone call with president Trump, I thanked him for his support! Together we will MAGA and Save America,” he added.
Meanwhile, Guy Reffitt, the 6 January rioter found guilty on five felony charges earlier this year, on Monday received the longest sentence handed down to a participant in the Capitol riot so far.
Reffitt was the first accused Capitol rioter to be tried before a jury after pleading not guilty.