More Americans are likely to vote for GOP presidential candidate Mitt Romney now that he's teamed up with vice presidential candidate Paul Ryan, the Wisconsin congressman and House Budget Committee chairman, according to a new Rasmussen Reports poll.

In the first extensive poll on Ryan since Romney chose him as his running mate, Rasmussen found that most likely voters believe Ryan was the right choice for Romney. What's more, 50 percent have a favorable opinion of Ryan, an 11 percent one month jump and all attributable to the smooth rollout of the youthful Republican.

While Rasmussen suggested that the polling is in line with past vice presidential picks, the lack of controversy surrounding Ryan makes his unveiling more like that of then-Sen. Joe Biden in 2008 than former Alaska Gov. Sarah Palin, and he should be able to sustain the positive reviews as did Biden after then Sen. Barack Obama tagged him to be the Democratic vice presidential candidate.

The poll of 1,000 likely voters was conducted August 12-13. It was weighted slightly in favor of Democrats who represented 36 percent compared to Republicans at 33 percent and "others" at 31 percent.

The key findings:

-- 43 percent said Ryan was the right choice for Romney to make. Some 22 percent called him the wrong choice and a sizable 35 percent said "not sure."

-- 36 percent said that they are more likely to vote for Romney now. Some 29 percent said they would be less likely to choose Romney after the Ryan pick and 30 percent said it would have no impact.

-- 50 percent have a favorable opinion of Ryan, with 29 percent declaring a "very favorable" opinion. Some 32 percent said they have an unfavorable opinion, and 18 percent said they either were not familiar with Ryan or unsure of their view of him.

-- Voters are split on whether Ryan is ready to be president. Some 37 percent said yes, 36 percent said no and 27 percent said that they are unsure.

-- And most voter consider Ryan a conservative. Some 71 percent described Ryan as conservative, with 40 percent dubbing him "very conservative."

-- In Ohio, Ryan had a bigger impact. The polling found that 40 percent are now more likely to vote for Romney.