Is this a flip-flop?

Give Ohio Gov. Ted Strickland and U.S. Sen. Sherrod Brown credit for allowing a decade to change their outlook. These now-older, more-mature politicians finally believe that trying to stymie an investigation is an impeachable offense.
Strickland and Brown are among the state's leading Democrats calling for Attorney General Marc Dann to resign or face impeachment. Dann, a first-termer from Youngstown, has admitted to an extramarital affair with a subordinate, and others are challenging inconsistent statements Dann made under oath. Strickland and Brown are right in calling for Dann to resign, given the lack of credibility his office now has. Dann made matters worse by trying to block the release of e-mails that call into question his ability to run a state office. Still, this all leaves Ohio's governor and junior U.S. senator in an uncomfortable position. A decade ago, neither thought similar actions were worthy of impeachment.
The U.S. House in 1998 voted to impeach President Bill Clinton for perjury regarding statements about the sexual relationship he had with White House intern Monica Lewinsky. Strickland and Brown, both members of the House in 1998, voted against impeachment. Do you suppose it's time or political convenience that now puts them on the other side?