I really think he thinks he can do this because obuma did it...and he is an opportunist just like GWB said he was...
“That’s Correct, and by that he is NOT a citizen of the United States legally, should not be a sitting Senator from Texas and should not be running for POTUS...”
He would not have been a citizen when he first arrived in the USA, but he would be a citizen now after she applied for his CRBA when he was a teenager. It has to be done before the person is 18 or he can lose his right to apply for citizenship.
So if the CRBA was applied for much later, he can legally hold the Senate seat. However, he should not be running for President, as he is not a Natural Born Citizen and he lied to the American people about his Canadian citizenship.