Trump Super PAC slams Harris in ad released shortly after Biden drops out

• "My very first decision as the party nominee in 2020 was to pick Kamala Harris as my Vice President," Biden wrote in his endorsement of Harris. "And it's been the best decision I've made."

Driving the news: A new attack ad from MAGA Inc., released an hour after Biden's announcement, framed the White House as a ship steered by Harris, with a voiceover saying, "Kamala knew Joe couldn't do the job, so she did it."

• "They created this mess; they know Kamala owns this failed record," the ad shared on X account @MAGAIncWarRoom concluded.
• "This ad is going to be airing ASAP on TVs in Pennsylvania, Georgia, and Arizona as part of MAGA Inc's $5 million a week advertising effort," another post read.

The bottom line: Weeks of speculation after the Biden-Trump debate on June 27 culminated in Biden's Sunday announcement, sending an already unprecedented election into an increasingly historic whirlwind.

• As concerns about Biden's age and mental acuity mounted, Harris became increasingly subject to GOP attacks in ads and on social media.

Go deeper: Trump on Biden's withdrawal: "Crooked Joe Biden was not fit to run"