MANCHESTER, N.H. — An Iowa straw poll that traditionally has served as an early benchmark in the Republican presidential nomination race lost much of its luster Wednesday as first Rudolph W. Giuliani and then John McCain decided not to compete in it.
The straw poll, scheduled for Aug. 11, in past campaigns has drawn tens of thousands of Republicans to a state party gathering in Ames, Iowa. But candidates have had to spend large sums of money to transport supporters to cast ballots at the gathering.
Giuliani's campaign, which has not stressed grass-roots organizing in Iowa and faced a potential setback in the straw poll, announced Wednesday morning that it would not actively participate in the vote.
Hours later, the McCain camp followed suit.
In previous straw polls, poor showings -- especially by those struggling to break into the top tier of contenders -- diminished some candidates' political viability. In 1999, lackluster results in Ames helped end the campaigns of former Vice President Dan Quayle and Lamar Alexander (now a U.S. senator of Tennessee).
But Giuliani calculated that skipping the straw poll would not significantly undermine his standing as the leader in national polls of presidential preference among GOP-leaning voters.
That prospect was bolstered by the similar move Wednesday afternoon by McCain (R-Ariz.).
With Giuliani and McCain quitting the straw poll -- and with former Sen. Fred D. Thompson of Tennessee, who is expected to soon enter the presidential race, also likely to bypass it -- that would leave only Mitt Romney among the leading GOP candidates committed to showing up in Ames.
The lack of top-tier competition could undercut a Romney victory, denying the former Massachusetts governor momentum from a win.
Giuliani advisors said the former New York mayor would save $3 million by skipping the straw poll. Giuliani advisor Jim Nussle called the event "a circus."
Giuliani advisors said he would still compete aggressively in the Iowa caucuses, which kick off the Republican nomination race. The caucuses are scheduled for Jan. 14, but the date could be advanced.
Giuliani has devoted less attention than several rivals to building a strong operation in Iowa. His liberal views on social issues have constrained his ability to appeal to conservatives in the state.
McCain's withdrawal from the straw poll was announced by his presidential campaign manager, Terry Nelson.
