President Donald Trump chastised House Speaker Nancy Pelosi Tuesday in a 6-page letter to the Democratic leader condemning the chamber’s partisan impeachment resolution expected to pass on Wednesday.

“By proceeding with your invalid impeachment, you are violating your oaths of office, you are breaking your allegiance to the Constitution, and you are declaring open war on American Democracy,” Trump said. “There is nothing I would rather do than stop referring to your party as the Do-Nothing Democrats. Unfortunately, I don’t know that you will ever give me a chance to do so.”

The president also challenged Pelosi to launch a thorough investigation into the origins of grand Russian collusion conspiracy theory where deep-state operatives in the FBI launched a covert investigation on the Trump campaign to oust the president before he was even elected. The undercover operation, named “Crossfire Hurricane,” was based on junk intelligence from the famously discredited Steele Dossier that led to a two-year investigation by Special Counsel Robert Mueller that ultimately exonerated Trump of any wrongdoing.

Earlier this month, the Department of Justice inspector general released a more than 400-page report documenting FBI FISA abuses in obtaining warrants to spy on the Trump campaign. Among the shocking revelations from the report include knowledge from officials in the FBI that the Steele dossier was unreliable intelligence while still relying on its sources to obtain permission from the FISA courts to continue its surveillance.

“If you truly cared about freedom and liberty for our nation, then you would be devoting your vast investigative resources to exposing the full truth concerning the FBI’s horrifying abuses of power before, during, and after the election,” Trump wrote.

The letter comes as House Democrats prepare to kick impeachment over to the Senate for a trial next year landing Democrats a major step closer to accomplishing the top item on their policy agenda since Trump’s inauguration: the reversal of the 2016 election results.

The articles of impeachment include one for “abuse of power” and one for “obstruction of Congress.” The proceedings were launched after an anonymous whistleblower lodged a formal complaint over a July 25th phone call between Trump and Ukraine President Volodymyr Zelensky alleging Trump conspired with a foreign leader to investigate political opponents at home in exchange for nearly $400 million in military aid. An unredacted transcript of the call however, which has been declassified and released to the public reveals no such “favor” as Democrats and the media have suggested.

“After three years of unfair and unwarranted investigations, 45 million dollars spent, 18 angry Democrat prosecutors, the entire force of the FBI, headed by leadership now proven to be totally incompetent and corrupt, you have found NOTHING!” Trump quipped in his letter to Pelosi. “You are the ones interfering in America’s elections. You are the ones subverting America’s Democracy. You are the ones Obstructing Justice.”

Impeaching Trump has indeed been the primary goal of the Democratic Party. Speaker Pelosi even jeopardized progress on the landmark U.S.-Canada-Mexico Trade Agreement (USMCA) and a prescription drug bill to pass their partisan “accomplishment.”

“Any member of Congress who votes in support of impeachment – against every shred of truth, fact, evidence, and legal principle – is showing deeply they revile the voters and how truly they detest America’s Constitutional order,” Trump added.