Jim Pinkerton and I were together again for another Bloggingheads.tv diavlog. We mainly agreed on Iran, with Jim sort of concurring with my assessment that John McCain is "bonkers" for pushing Barack Obama to embrace the Iranian opposition. Nothing would hurt the opposition movement's credibility within Iran--where it counts most--than a big wet-kiss from Washington. We then moved on to health care, with Jim suggesting both Ds and Rs are wrong to preach austerity to the American public when it comes to health care dollars. Perhaps, but I challenged his solution: freeing the health care industry from government regs so it can produce the sort of products and services that can be exported abroad a la McDonald's. Finally, our big topic: whether the remaking of the cheesy 1984 anti-commie movie Red Dawn--high school kids in Colorado beat back Russian and Chinese invaders--is of any cultural significance. Jim: yes and hooray! Me: no and yawn.

Also, at Thursday's White House press briefing, I asked press secretary Robert Gibbs about an earlier McCain tweet, in which the senator again urged Obama to declare an explicit alliance with the Iranian opposition. Here's the exchange:

Q: Thanks, Robert. A question about Iran again. Earlier today, a few hours ago, John McCain, on his Twitter feed, said -- and it's short, as it has to be -- "Mass peaceful demonstrations in Iran today; let's support them and stand up for democracy and freedom!"

MR. GIBBS: Was it that vociferous or are you --

Q : "The President and his administration should do the same." Do you think that it is helpful, or not helpful, for members of Congress to be making declarations like this, and putting pressure on the White House to do and say more?

MR. GIBBS: Again, I'm not going to get involved into commenting on the motivations that other members may have. I know some people agree with what Senator McCain said; some people agree with what other Republicans have said that's very much like the President's position. The President strongly believes that we should and have spoken out to ensure that demonstrators have the universal right and principle to demonstrate without fear of harm. But at the same time, we have to respect their sovereignty.

Gibbs did not use the opportunity to call McCain "bonkers" or anything else. But with a crunch time coming in Iran, we can expect McCain and other Rs to turn up the rhetoric and try to intensify the pressure on Obama. That might be good politics for them, but it's not likely to help the Iranian opposition.