"If you use Article Two, it is called obstruction," Trump told CPAC. "But only for Trump, for nobody else."
Wrong.
From Article I of the articles of impeachment against Richard Nixon:
In his conduct of the office of President of the United States, Richard M. Nixon, in violation of his constitutional oath faithfully to execute the office of President of the United States and, to the best of his ability, preserve, protect, and defend the Constitution of the United States, and in violation of his constitutional duty to take care that the laws be faithfully executed, has prevented, obstructed, and impeded the administration of justice...
The means used to implement this course of conduct or plan included one or more of the following:
making false or misleading statements to lawfully authorized investigative officers and employees of the United States;
withholding relevant and material evidence or information from lawfully authorized investigative officers and employees of the United States;
approving, condoning, acquiescing in, and counselling witnesses with respect to the giving of false or misleading statements to lawfully authorized investigative officers and employees of the United States and false or misleading testimony in duly instituted judicial and congressional proceedings;
interfering or endeavouring to interfere with the conduct of investigations by the Department of Justice of the United States, the Federal Bureau of Investigation, the office of Watergate Special Prosecution Force, and Congressional Committees...