Walden, it turns out, has written legislation that would bar the executive branch from minting coins of any denomination. That would include the much-talked-about trillion dollar coin, which would allow the U.S. government to continue to meet its obligation in the event Congress refuses to raise the debt limit. And, as Joe Weisenthal points out, by introducing legislation to ban such a maneuver, Walden is implicitly acknowledging that under current law, the trillion dollar coin is a perfectly legal and workable way to get around the debt limit.
I'll admit that the idea of minting a trillion dollar coin is completely absurd. But it's a heck of a lot less absurd than allowing Republicans to tank the national and global economy over a budget fight. And while it may sound like it gives the president power he shouldn't have, remember that it wouldn't allow any money to be spent that hadn't already been authorized by Congress. It simply would allow the United States to make good on its debt obligations. Moreover, as soon as a rational Congress were returned to power, the coin could be "repurchased" along with an increase in (or repeal of) the debt limit.
Personally, I don't think it'll ever come to this. If Republicans were actually serious about doing something this reckless, their financial backers would only need to convince about 20 of them to join with Democrats in raising the debt limit. But it's nice to know that even if Republicans do head down that path, there's nothing to fear, because as even Greg Walden concedes, nothing can stop President Obama from minting that coin.