Rudy Giuliani isn't alone anymore in the leading spot for Republican White House contenders since being joined this week by former Sen. Fred Thompson in the latest Rasmussen Reports favorability poll.
Twenty-four percent of Republican voters support both Giuliani and Thompson. Last week, the former New York City mayor led Thompson by 6 percentage points, according to the poll of 633 likely Republican primary voters.
Thompson, the Law & Order star who is expected to join the field of Republican 2008 White House candidates officially next month, won a favorable opinion of 59 percent of Republicans polled while 14 percent gave an unfavorable opinion and 27 percent were not sure.
Meanwhile, Arizona Sen. John McCain continues to lose support with just 11 percent of Republican voters surveyed giving him a favorable rating. McCain's dip in the poll began after his vocal support for immigration reform legislation in the Senate. No other Republican hopeful supported the bill.
Former Mass. Gov. Mitt Romney also fell four points to 11 percent in this week's poll, and is now tied with McCain. Former House Speaker Newt Gingrich, who is also not in the race, received 7 percent.
Separately, in a Los Angeles Times/Bloomberg poll released Tuesday, Giuliani is ahead with 27 percent, but Thompson is closing in with 21 percent, and within the 5 point margin of error making the race a statistical tie. McCain was at 12 percent and Romney at 10 percent of the 408 Republican primary voters surveyed.