PHILADELPHIA — Blocks away from the Wells Fargo Arena, a mobile billboard passes by and cheers break out among Bernie Sanders supporters who’ve spent the better half of their day protesting in 90-degree heat. A single word — “enough” — adorns either side of the semi-trailer. The “H” is Hillary Clinton’s campaign logo.

The traveling billboard is insignificant when one considers the other avenues Republican National Committee officials plan to use to target disenchanted Democrats between now and November. But each piece of the puzzle counts, noted chief RNC strategist Sean Spicer.