Murphy faced no Democratic primary challenge.

He did not face a Democratic primary challenge but was challenged by a Republican, 18-year old Andrew Funk, in the general election.

No one would say that these are just Republican or Democratic challenges.

Hanabusa has announced a Democratic primary challenge to the incumbent Schatz in the 2014 special election.

That year he faced a Democratic primary challenge from Robert Bradshaw.

After skating to reelection from 1982 to 1990-including two completely unopposed bids in 1988 and 1990-he faced aggressive Democratic challenges for most of the 1990s.

McGovern faced a Democratic primary challenge for the first time, from a pro-life candidate.

Mizell may have thought that his 1972 margin would insulate him from further Democratic challenges in 1974.

The challenges we face, they're not Democratic or Republican challenges.

And now he will have no spot on the ballot either, after a successful Democratic challenge to his candidacy petitions.