In a stunning turn of events, President Joe Biden's announcement that he would not seek reelection has sent shockwaves through the Donald Trump campaign and the Republican Party. According to GOP insiders, this unexpected move caught them off guard and triggered a frantic scramble to shift their focus onto Vice President Kamala Harris.

President Biden's decision came amidst mounting pressure from Democratic lawmakers and donors, causing even Trump's senior advisers to express doubt that the president would actually drop out of the race. When Biden officially bowed out on Sunday afternoon, the Trump campaign had already prepared three anti-Biden materials and various other messages from the Republican National Committee.

Interestingly, even before Biden's lackluster performance in the Trump-Biden debate, there were internal debates within the Trump team about whether the President would step aside. The campaign initially responded to Biden's exit by portraying it as an attempted "coup" by top Democrats.

Alex Conant, a GOP strategist who worked on Sen. Marco Rubio's 2016 presidential campaign, expressed regret that Harris was not given more attention during the Republican convention, referring to it as a missed opportunity. Meanwhile, the Trump campaign refuted the notion that they were caught off guard by Biden's decision, asserting that they are prepared for any scenario.

Former President Trump, who strongly prefers to run against President Biden rather than another Democratic candidate, is now plotting a fierce assault on Vice President Kamala Harris if she becomes the nominee. His attacks would focus on portraying Harris as too liberal, hostile to business, insecure on border security, and lacking experience and authenticity.

However, some of Trump's advisers are concerned that a fresh and youthful ticket without Biden may pose a greater threat than anticipated. Recognizing this, a pro-Trump Super PAC wasted no time in accusing Vice President Harris of being complicit in a cover-up of President Biden's alleged mental decline.

Following Biden's announcement, Trump's closest allies have swiftly shifted their focus and criticism towards Vice President Harris, whom President Trump himself endorsed in a separate tweet.

The unexpected decision by President Biden not to seek reelection has undoubtedly disrupted the election landscape, forcing the Trump campaign to swiftly adapt their strategy in order to counter a potential Harris nomination. As the political landscape continues to evolve, it remains to be seen how this surprising development will shape the 2024 presidential race.