Former Alaska GOP Gov. Sarah Palin on Tuesday urged her network of supporters to rally around the Republican Governors Association and the GOP gubernatorial nominees in New Jersey and Virginia.

Her call to action marks the second time in a week that Palin has weighed in on behalf of specific candidates. Last Thursday, Palin endorsed Conservative Party nominee Doug Hoffman over Dede Scozzafava, the Republican nominee, in the Nov. 3 special election in New York’s 23rd Congressional District...