“You need a cause of action with provable tortious conduct by someone.”
Obama is ineligible to be President because he naturalized as a U.S. Citizen in 1983. Naturalized U.S. citizens are ineligible to be President, yet they are eligible to receive votes from Electors. Ballot eligibility and a majority vote by the Electors in the Electoral College does not confer eligibility upon a sitting President. When the ballots are read by the VP, a member of the House and a member of the Senate may concurrently submit an objection to votes being counted for an ineligible President, but the House and Senate must vote to sustain the objection for the ineligible President not to receive the votes.
The De Facto Officer Doctrine indemnifies the U.S. Federal Government from the actions of a usurper after the usurper leaves office. While the usurper is in office, an individual who suffered a particularized harm by a law, regulation, or appointment by the usurper may object and seek a waiver in Federal Court. An individual cannot seek to have a sitting President ordered to be removed or his laws declared null and void.
Good luck with that.