Mitch McConnell has spent the last seven years as the senate Republican leader. He has spent the past two years as the majority leader.
He has presided over a reckless government shutdown caused by his own party. He has participated in the blockage of legislation, refusing to send members to conference, filibustering nominees, refusing to hold hearings on a supreme court justice replacement, overseeing a foreign policy disaster by permitting the prime minister of Israel to attempt to undermine treaty negotiations with Iran and permitting direct interference of senate members in the negotiations with the submittal of a letter directly to Iran to undermine the president, refusing to hear budget proposals from the president, and either failing to legislate or dragging his feet and being slow to legislate in virtually every area on almost every issue of importance including national crises like Ebola, Zika, universal background checks after mass shootings, US debt crises and more recently the debt crisis in Puerto Rico, poisoned water in Flint, Michigan, Central American juvenile refugee crisis, renewal of an AUMF for Iraq and Syria to deal with ISIL, criminal justice reform - just to name a few. He has failed to renew the Voting Rights Act in spite of that requirement being identified as part of a supreme court decision. He has failed to deal with immigration reform yet has participated in legal action against the administration to tie its hands to use the same executive actions permitted under law to deal with immigrations issues that have been used by presidents dating back to Reagan. He has condoned endless hearings on baseless scandals, and has entertained frivolous lawsuits against the administration all while attempting to repeal ACA dozen of times and repeatedly promoting odious abortion bills. And no coherent jobs bill or infrastructure bill has ever been proposed by the republicans under McConnell.
McConnell has presided over the least productive, seemingly most capricious vindictive, and thoroughly incompetent senates in history, particularly after the Iran nuclear deal yet he has been known to be frustrated because President Obama keeps "winning." And after just two years as the majority leader he's on the verge of losing the majority even as Obama's popularity continues to rise to the level of Ronald Reagan.
McConnell's pain, suffering, humiliation and abysmal failure are all self-inflicted by a small, malevolent, bitter little man who put his own politics, bigotry, goals and objectives before that of the nation. Congress is hated now more than ever, and Americans have expressed that Republicans should no longer run congress. He, nevertheless, seems surprised that his leadership is in danger.