<p>U.S. Rep. J.D. Hayworth is quietly gearing up for a run for governor.</p>
<p>Republican pundits believe that if Gov. Janet Napolitano doesn't run for a seat in the U.S. Senate in 2006, Hayworth would provide a tough, intriguing matchup for her. The theory is that Hayworth, a congenial conservative, would pose problems for the incumbent governor on several fronts.</p>