President Donald Trump's legal team filed a lengthy response to charges he abused his office and obstructed Congress, decrying the attempt to remove him as a charade and calling on senators to quickly reject it.The 110-page filing reflects the most fulsome rebuttal of Democrats' accusations against Trump and amounts to a preview of the case Trump's lawyers will make on the Senate floor when the impeachment trial commences.They argue the impeachment was a partisan sham that failed to prove any violation of law. They warn against dangerous precedents should Democrats' efforts prove successful. And they insist Trump was well within his prerogatives to raise the issue of his political rivals with a foreign leader. CNN News