Mitt Romney is the first top-tier Republican presidential candidate to run a national ad. The ad started in early April, but I haven’t seen it on television until recently:

Bryan adds: The ad deftly distances Romney from President Bush–who has spent money like mad and only used the veto twice–while coming across as positive and reformist and a conservative Republican. It gets Romney to Bush’s right on fiscal issues, where there is a lot of space and where any GOP hopeful needs to be. I can’t say I’m a Romney guy, but this is a solid ad imho. Not flashy or original, but it does the job.