President Donald Trump will resign from the presidency citing health reasons before the House of Representatives can impeach him, leading Democratic organizer Jon Cooper has predicted.

The chairman of the Democratic Coalition, on Sunday, November 17, also suggested that it's likely that an internal betrayal could also spell an end to Trump's term amidst the ongoing impeachment investigation against him. 

House Speaker Nancy Pelosi launched an impeachment inquiry in September after a whistleblower lodged a formal complaint, alleging that President Trump had sought favor from Ukraine President Volodymyr Zelensky during a June phone call, asking him to investigate his political rival, former vice president Joe Biden.

The whistleblower also mentioned a possible quid pro quo involved as Trump held back the US military to Ukraine.

The House of Representatives initiated the public impeachment hearings last week, producing damaging testimonies from the senior State Department and National Security Council officials.

Cooper reportedly argued that the situation, in the wake of the ongoing probe, for Trump has become so dire that he may not be able to see out his full term. Trump, who generally boasts about his "very" good health, recently made an unscheduled health check-up trip this weekend.

His two-hour-long health appointment resulted in rumors of the president suffering from ill-health, according to Newsweek.

White House Press Secretary Stephanie Grisham, however, dismissed the reports on Sunday, saying: "Absolutely not. He is healthy as can be."

Cooper, however, took to Twitter, writing: "PREDICTION: Donald Trump will resign from office before he can be impeached, citing health reasons."

The Democrat activist, in a separate post, suggested that Trump might be in more danger from his internal team than critics outside. He also added that Vice President Mike Pence is "likely" eyeing Trump's spot in the Oval Office.

"Three things to understand about @VP Mike Pence," Cooper wrote, arguing that the vice president "knows Trump is a lying, cheating, corrupt, traitorous criminal." He continued, saying Pence's own ambition makes the Republican a dangerous ally.

"He'd stab anyone in the back — and I mean ANYONE — to advance his political aspirations," Cooper claimed. "He's likely plotting behind the scenes right now to betray Trump."