Sen. Marco Rubio (R-Fla.) has been out of the running for president since March, but he’s still managed to inspire more negative political ads than Hillary Clinton, the Democratic Party’s presidential nominee. That disparity isn’t so much a commentary on Rubio, though, as it is on the striking lack of negative presidential ads Clinton has faced so far this election, Politico noted: Just about a month after Donald Trump clinched the Republican presidential nomination, “some current Senate candidates have actually faced a bigger barrage of negative ads in their states than Clinton has nationwide.”

Even if Trump is going about his campaign in a decidedly unconventional way, Republican strategists contend that his lack of interest in paid attack ads is a definite missed opportunity.