Is Senator Harry Reid trying to kill immigration reform by forcing a vote on a bill he knows Republicans will feel they have no choice but to filibuster? Or is he trying to call the bluff of members of the GOP who claim to be interested in immigration reform but continue to impose one new demand after another?

Republican Senators are now basically begging for more time.

Whether you like Reid or not, there is a point to his gambit. Republicans don't get more pro-immigration as an election nears. How much time is left before presidential politics will block any hopes for a deal?