"I will now give you a list of presidents who in our history have been accused of abusing their power, who would be subject to impeachment under the House Manager’s view of the Constitution."

"George Washington, refusal to turn over documents related to the Jay Treaty. John Adams signing and enforcing the alien and sedition laws. Thomas Jefferson purchasing Louisiana without congressional authorization. I’ll go on. John Quincy Adams, Martin Van Bern, John Tyler, arbitrary despotic and corrupt use of the veto power... Abraham Lincoln accused Polk of abusing his power of his office, contemptuously disregarding the constitution, usurping the role of Congress and assuming the role of dictator. He didn’t seek to impeach him. He just sought to defeat him. Abraham Lincoln. Abraham Lincoln was accused of abusing his power for suspending the writ of habeas Corpus during the Civil War. President Grant, Grover Cleveland, William McKinley, Theodore Roosevelt, William Taft, Woodrow Wilson, Franklin Roosevelt, Harry Truman, Jimmy Carter, Ronald Reagan... [The Clinton/Gore campaign said] 'George H.W. Bush... and his administration have abused their governmental power for political purposes.' That’s how abuse of power should be used, as campaign rhetoric. It should be in statements issued by one political party against the other. That’s the nature of the term. Abuse of power is a political weapon and it should be leveled against political opponents. Let the public decide.... Barack Obama — the House committee on the judiciary, held an entire hearing entitled Obama Administration’s abuse of power.... It is inconceivable that the framers would have intended so politically loaded and promiscuously deployed a term as abuse of power to be weaponized as a tool of impeachment."

From Alan Dershowitz Defense Argument Transcript: Trump Impeachment Trial January 27.