The majority of Kentucky voters view Senate Minority Leader Mitch McConnell unfavorably and have deep concern about his support for unlimited campaign contributions, according to a poll released Wednesday by Public Campaign Action Fund, a group that seeks to limit the influence of big money on politics.

The statewide survey, conducted by Lake Research Partners, shows the Republican senator’s vulnerability on the issue of money in politics, one that his opponents plan to exploit in his upcoming reelection fight.