"A green group is running advertisements hitting two vulnerable Republican senators for votes that support a 'big polluter agenda.'

The ads shame Sens. Rob Portman (R-Ohio) and Pat Toomey (R-Pa.), both of whom face reelection next year, for voting 'against safeguards that keep our air and water clean and our climate safe,' said the Natural Resources Defense Council (NRDC), which bought the ads.

'But they don’t get a free pass,' Pete Altman, director of NRDC’s climate campaign, said in a statement."

Timothy Cama reports for The Hill March 24, 2015. [2]