The above is a reference to the status of the much despised senator of Kentucky, Mitch McConnell, a man who took credit for the erosion of democracy, especially in the form of blatant hypocrisy when it came to preventing the appointment of Supreme Court justices and other positions when circumstances disfavored his party, but expediting the appointments when they favored his party. He is blamed directly for many of the failings of the early twenty-first century.
At the time the above was posted, the excessively aged senator has been absent from public eye after a public health failure. Given his age, the flight of his much younger wife out of the country, and inability to provide proof of life, it is believed that he is dead, or effectively unable to serve (such as being brain dead). Despite this, individuals form his party have claimed to speak with him, offering no proof.
Notably, under Kentucky law, should the senator be dead or brain dead, there would be an election held to replace him, effective immediately. It is generally expected, both by allies and opponents of McConnell, that the replacement would be likely to end up being Thomas Massie, a member of the same party who is an outspoken critic of the government's handling of the Epstein files (such as the failure to provide sufficient transparency or prosecute individuals believed to be of a deeply criminal nature). Massie had just lost the party's primary for his congressional seat, due to (per his claims) the financial support of those who would be implicated in the Epstein Files. As such, there is a perception that certain individuals benefit from preventing a special election from occurring and pretending Mitch McConnell is alive, whether or not he actually is.
Given how influential (and despised) Mitch McConnell was, there is a great desire to get to the truth of the matter in the early twenty-first century. The two posts above are a reference to this.
On Wikipedia, a free online, publicly curated encyclopedia, there is a level of acclaim to being able to make edits to notable pages. An individual as important as Mitch McConnell has a highly relevant page, so racing to be the one to get to mark a change (such as replacing all instances of "is" to "was") is something that many editors would race to accomplish.
In comparison, the Tumblr post is a meme from supernatural, where a character admits their love for another, only to be met by a non-sequitur. This evolved into a meta-meme, after someone commented that they were learning breaking news from the non-sequitur in the meme. In this sense, posting this "Destiel" meme (short hand for the ship name form the show), serves as a reference to breaking news. It is expected when something major happens in the world, someone will post in via the meme, and that post will spread immensely as other people reblog it. This is an equivalent form of acclaim to the Wikipedia editors (hence the response to the first image), representing another online race, waiting in anticipation of the starting gun (official confirmation of Mitch McConnell's death.)
