I'm sorry . . . I forgot that impeachment is not guilt. I would love to see the House IMPEACH the illegal alien . . . altho I still ask, "Can you impeach someone who is not eligible to hold the office anyway?"
I do not believe so.
If Obama is an illegal alien, as I believe, he has usurped the Office of the Pesident of the United States. As such, he is a foreign enemy of the state. Immediate removal and imprisonment is therefore not warranted but demanded. All official acts he committed under the color of the Presidency would be automatically void.
Further, Biden would be have to be removed as not legitimately elected. He would also likely be arrested and imprisoned for treason. The Speaker of the House would succeed to the Presidency. Pelosi would need be immediately arrested and imprisoned for treason for certifying Obama's eligibility. Quite a few other elected and appointed officials would likewise be arrested and imprisoned.
Which body would try Obama is beyond my ken. A case could be made for a military tribunal. The judicial process for the traitors is much better established. But Obama alone could not be classified and prosecuted as a traitor. He would have to be classified as a foreign enemy of the state.
First step in this would be denouncement of Obama as an illegal alien in either the House or in Federal Court. Then full-blown Constitutional crisis, courtesy of our enemies foreign and domestic.
And remember, the Armed Forces of the United States swear an oath to defend and protect the Constitution.