[December 15, 2011](AP)
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Some of the Republican presidential candidates are squeezing in campaign events before participating in a televised debate in Sioux City, Iowa. It's their last debate before the Iowa caucuses on Jan. 3.
The debate, scheduled for 9 p.m. EST Thursday, is sponsored by Fox News and the Iowa Republican Party.
Earlier Thursday, Rick Santorum is set to meet with voters in Rockwell City, Sac City and Holstein, Iowa.
Newt Gingrich will be in Fort Dodge, Iowa, and Rick Perry will be in the Iowa town of Le Mars.