man it would be so awesome if Jeb could get him to convert before he leaves office.
Why's that?
Jeb Bush married a Catholic.
Something usually needs to give when a religious non-Catholic marries a Catholic. Jeb was raised as an Episcopalian, and to my knowledge did not come to his religion by way of Billy Graham and did not have the Evangelical connections of his brother. Even so, it took Jeb a lot of married years before he became a Catholic.
In his brother's case, I could see it only if he and Laura both decided together than that they want to become Catholic. They respect the church, but they also respect Judaism and a number of faiths that do not accept Christ, including Islam. Does not mean they would ever convert.
I see their great respect for Catholicism, but she is a lifelong Methodist and he traces his current spirituality to Billy Graham, and in those things I see little similarity to Jeb Bush's path to conversion.