Biden marks Jan. 6 with election-year warning on democratic threats

President Joe Biden on Friday will mark three years since the Jan. 6 attacks on the U.S Capitol with a warning to voters that Republican Donald Trump is a threat to the country's standing as a free democracy.

Trump, who was president from 2017 to 2021 and is again seeking the Republican nomination for president, contested his defeat in the 2020 election, prompting thousands of his supporters to attack the U.S Capitol on Jan. 6, 2021, in a failed bid to stop formal certification of the result.

Speaking near George Washington's Revolutionary War-era headquarters in Pennsylvania, Biden, a Democrat, will inaugurate the 2024 campaign year with an implicit pitch that a vote for him means a continuation of American style of democratic government and a vote for Trump a leap into an uncharted future.