Michigan's secretary of state said on Wednesday that a lawsuit by US President Donald Trump seeking to halt counting of votes was "frivolous."
Michigan Secretary of State Jocelyn Benson said that all valid ballots cast in Michigan had been tabulated securely and acccurately.
Dozens of supporters of President Donald Trump chanting ``Stop the count!'' descended on a vote-tallying center in Detroit on Wednesday, as Americans on both sides of the political divide vented their anger and frustration over the undecided presidential contest at scattered protests around the country.
The Detroit protests started shortly before The Associated Press declared that former Vice President Joe Biden had won Michigan.
Video shot by local media showed angry people gathered outside the TCF Center and inside the lobby, with police officers lined up to keep them from entering the counting area. They chanted ``Stop the count!'' and ``Stop the vote!''
Earlier, the Republican campaign filed suit in a bid to stop the count, demanding Michigan's Democratic secretary of state allow in more inspectors.
Trump has repeatedly insisted without evidence that there are major problems with the voting and the counting.
Michigan Attorney General Dana Nessel, a Democrat, insisted both parties and the public had been given access to the tallying ``using a robust system of checks and balances to ensure that all ballots are counted fairly and accurately.''