Mostly Generalities Senator Bob Dole, the President's prospective Republican challenger, does not have - at least not yet - a single speech that he delivers over and over.

Kempelen, however, was more interested in his other projects and avoided exhibiting the Turk, often lying about the machine's repair status to prospective challengers.

Nevertheless, going into his 1992 re-election campaign, D'Amato was shown in surveys to be a near-certain loser to most prospective challengers.

It arguably began four years ago this weekend with a story in The New York Times about the White House's strategy for dealing with prospective Democratic challengers to President Bush.

Nine of Easy Goer's prospective challengers have legitimately earned a shot.

Last Thursday was the first deadline for prospective challengers to lodge challenges - and post the $150,000 entry fee - for the next running of the event.

Some prospective challengers explained that it was ticklish for them to stump about domestic issues in a time of crisis or to even solicit people for donations when they would rather give money to help victims' families.

Instead Federer will face a lucky loser on Sunday, but Tommy Robredo of Spain and David Nalbandian of Argentina are prospective challengers later on.

But when the bill failed to pass, on Aug. 2, I voluntarily placed a $4,000 limitation on contributions to a single campaign - though a prospective challenger could greatly outspend me.

In Pennsylvania, Mr. Casey, the prospective challenger to Mr. Santorum, said he would press the incumbent on why he had not taken a lead in raising questions about the war.