>>I wonder if Mrs. Bush maintains her Mexican citizenship?<<
She could. My wife does.
But she and I had a heartfelt discussion: if it was Mexican interest vs. USA interest she would be USA first.
She took her oath with all hear heart. The Mexican citizenship has become a convenience. She hasn’t voted in a Mexican election in 20+ years.
And, if you were running for president, I would hope that she could commit 100% to America.