Fans and advocates have been operating an underground effort to push their potential 2016 presidential candidacies for months, but now louder voices are helping to make the case for a White House matchup between Texas Sen. Ted Cruz and Massachusetts Sen. Elizabeth Warren.

Erick Erickson’s RedState site on Monday raised the possibility of the political lightning rods emerging as the party nominees in the fall of 2016 in a detailed accounting of their backgrounds in which the site said they are in some ways “mirror Images.”