Harris vs. Trump: 100 days from election, it's a dramatically altered presidential race

Sunday marks 100 days until Election Day 2024.

It also marks one week since President Biden's political landscape-altering announcement that he was suspending his re-election rematch against former President Trump.

Biden made his move amid mounting pressure from within the Democratic Party for him to drop out after a disastrous performance in last month's first presidential debate with Trump.

2024 SHOWDOWN: TRUMP QUICKLY MOVES TO TRY AND DEFINE HARRIS

The embattled president's immediate backing of Vice President Kamala Harris last Sunday ignited a surge of endorsements for the vice president by Democratic governors, senators, House members and other party leaders. Within 36 hours, Harris announced that she had locked up her party's nomination by landing the verbal backing of a majority of the nearly 4,000 delegates to next month's Democratic National Convention.

ICING ON THE DEMOCRATS' 2024 CAKE - THE OBAMAS ENDORSE HARRIS

Former President Obama and former first lady Michelle Obama on Friday became the final major party leaders to endorse the vice president.

Harris also hauled in a staggering $129 million in fundraising following Biden's announcement, which her campaign touted on Thursday morning.

"It’s go-time for both sides," longtime Republican consultant David Kochel told Fox News.

Besides uniting and exciting Democrats, the replacement of Biden by his vice president as the party's standard-bearer - which is expected to become official during a virtual roll call of convention delegates that starts on Aug. 1 - has given Harris a bump in public opinion polling.

What was once a margin-of-error race between Biden and Trump had turned into a clear edge for the former president in the weeks after their June 27 debate