Is the decision of the members of the Senate appealable in regular courts?
No, a finding of conviction or acquittal by the Senate cannot be appealed even in the Supreme Court. The Constitution is clear that the Congress has the exclusive power to try and decide all cases of impeachment. There are those who argue, however, that the Supreme Court, pursuant to its power of judicial review can take cognizance of the decision of the Senate on the ground that the latter committed grave abuse of discretion in the conduct of the impeachment trial. Ultimately, the Supreme Court shall decide whether it should entertain suits questioning the decision of the Senate.