I want to know the answer to the following question:
Which candidate withdrew from the presidential race in January of 2008?
All the background I'm provided with is that "Schwarzenegger's endorsement in the Republican primary of the 2008 U.S. presidential election was highly sought; despite being good friends with candidates Rudy Giuliani and Senator John McCain, Schwarzenegger remained neutral throughout 2007 and early 2008.". Is that enough to answer the question?
Answer: yes