Sen. Charles Schumer (D-N.Y.), who along with New York Mayor Michael Bloomberg (I) has been a key voice in favor of increased gun-control measures, dings his erstwhile partner in a new interview.

Speaking to Time magazine, Schumer suggests Bloomberg's targeting of pro-gun Democrats for their votes against gun-control legislation is unproductive.

"Frankly, I don’t think Bloomberg’s ads are effective," Schumer said. "The Mayor of New York City putting ads against people in red states is not going to be effective."

Rather than focusing on Republicans, Bloomberg has been running ads against pro-gun Democrats like Sen. Mark Pryor (D-Ark.) and urging Democratic donors not to support him. Bloomberg's groups have also targeted GOP Sens. Kelly Ayotte (R-N.H.) and Jeff Flake (R-Ariz.).

Schumer's point is one The Fix team has made often: that the wealthy mayor of very liberal New York City probably doesn't have much cache with rural conservatives in states like Arkansas.

Schumer did praise Bloomberg as a counterweight to the NRA, but suggested he should not focus on red states.