Republican leader promises 'orderly' transition
Republican leader Mitch McConnell has said there will be an "orderly" post-election transition after the president questioned the process's integrity.
The top US senator said that, regardless of who wins the 3 November presidential election, there will be a peaceful inauguration on 20 January, reports BBC.
A day earlier, President Donald Trump refused to commit to this, saying "we'll have to see what happens".
He has cast doubt on postal voting, but election officials insist it is safe.
The president currently trails his challenger, Democrat Joe Biden, in national opinion polls with 40 days to go until the election.
Many more Americans than usual will be casting their votes by post this year, due to the pandemic, and Mr Trump has been questioning the security of this mail-in ballot system.