The son of Republican presidential candidate Mitt Romney has apologised to Barack Obama for saying in a radio interview that he was tempted to "take a swing" at the US President for criticising his father during a debate.
Tagg Romney walked up on stage with other family members after Tuesday's third presidential debate in Florida, where cameras showed him shaking hands and exchanging words with Mr Obama.
After the second presidential debate, Tagg told a radio interviewer it made him angry when Mr Obama questioned his father's honesty.
"You want to rush down to the debate stage and take a swing at him," he said in the interview.
A Romney campaign official said that Tagg apologised for the remark.
Separately, a spokeswoman for Mr Romney said the US presidential hopeful disagreed with comments made by Indiana Republican senate candidate Richard Mourdock about rape and pregnancy.
During a debate in New Albany, Indiana, Mr Mourdock said when a woman became pregnant during a rape "that's something God intended".
His comments quickly drew criticism from Democrats, including challenger Joe Donnelly, who is locked in a tight race with Mr Mourdock.
Romney spokeswoman Andrea Saul said in an email that Mr Mourdock's comments "do not reflect" Mr Romney's views.
Mr Mourdock's comments come a day after a new advert featuring Mr Romney giving his support for the Republican candidate went on the air.