Would SCOTUS scrap HR1 if enacted into law?

[NYDem]

As far as I can tell, the only thing that H.R. 1 really purports to do regarding presidential elections is requiring that presidential candidates & their running-mates to disclose the previous 10 years of their tax returns, which would appear to be constitutional under current precedent.

I don't see how establishing an additional qualification for the Presidency by legislation could possibly be Constitutional. I'd imagine that gets struck down if it makes it into actual legislation.