(Leah Hogsten | Tribune file photo) Sen. Orrin Hatch, R-Utah, has spent nearly $10 million on his bid for a seventh term. (Al Hartmann | Tribune file photo) Candidate for U.S. Senate Dan Liljenquist is criticizing Sen. Orrin Hatch for ducking debates before the June 26 primary. Liljenquist says he will hold debates using an empty chair or a Hatch cutout if the senator chooses not to show. (Francisco Kjolseth | Tribune file photo) Senate candidate Scott Howell gets fired up during his nominating speech at the state Democratic convention on April 21. Howell has offered to debate Republican candidate Dan Liljenquist as many times as he wants — unlike Sen. Orrin Hatch who has limited himself to a single debate before the June 26 primary.