If America is faced with a national default because of Republican obstruction against raising the debt ceiling, in my opinion President Obama has authority under Article 4 of the 14th Amendment to the U.S. Constitution to act unilaterally if necessary to avoid a debt ceiling-induced default. If default is the only other option, the president should exercise this authority.

Unilateral presidential action to avoid a debt-ceiling default is the second worst option, and should be avoided if at all possible. Unilateral action sends an awful message to financial markets. While I believe such action would be reluctantly approved by a narrow Supreme Court majority after an inevitable challenge, judicial approval is not certain. Bipartisan and comprehensive budget, spending and revenue negotiations on all outstanding issues is a far more desirable outcome.

Former President Bill ClintonBill ClintonTrump takes office in tough place, but approval ratings do change The new Washington elite schmoozes over lunch Trump: 'Very honored’ that Clinton attended inauguration MORE has championed the option of presidential authority if needed. House Minority Leader Nancy Pelosi (D-Calif.) has also championed this authority. And now Senate Majority Leader Harry ReidHarry ReidThe DC bubble is strangling the DNC Dems want Sessions to recuse himself from Trump-Russia probe Ryan says Trump, GOP 'in complete sync' on ObamaCare MORE (D-Nev.), Senate Democratic Whip Dick DurbinDick DurbinJustice requires higher standard than Sessions Warren burns Mnuchin over failure to disclose assets Trump Treasury pick to defend foreclosure record MORE (Ill.), Senate Democratic Policy Committee Chairman Charles SchumerCharles SchumerThe Hill's 12:30 Report Why Democrats fear a successful inaugural address from Trump CBO: 18 million could lose coverage after ObamaCare repeal MORE (N.Y.) and Democratic Conference Secretary Patty MurrayPatty MurrayWarren burns Mnuchin over failure to disclose assets Warren: GOP ‘ignored’ ethical requirements for Cabinet picks Overnight Healthcare: Takeaways from Price's hearing | Trump scrambles GOP health plans MORE (Wash.) have supported this authority in a recent letter. I applaud them all.

President Obama is right in stating that America is not a deadbeat nation and that Republicans should stop holding the good faith and credit of the United States hostage. I would add that America must stop acting like a banana republic on matters of budgets, spending and taxes. These constant last-minute fiascos, the abuse by both parties of creating intense fear among Americans as a political tactic and the constant dangers of both real and self-induced catastrophes are unworthy of the United States and must end.

President Obama has expressed doubt about unilateral presidential action. To the degree he prefers to avoid this option, he is right. To the degree he may be forced to choose between unilateral action and default, he should state as soon as possible, as firmly as possible, that unilateral action may be the second worst choice but default would be, by far, the worst choice.

The proper solution is a bipartisan budget deal that is significant and moves far beyond the debt-ceiling issue. The president won the 2012 election. Senate Democrats were huge winners in the 2012 election. House Democrats gained seats and won more national popular votes than House Republicans in the last election. Democrats have won three out of the last four national elections. So any bipartisan agreement should be tilted toward the Democratic position.

At the same time, all House Republicans also won their seats in the 2012 election, which gives them some moral and political right to some concessions from Democrats, in proportion to the will of voters, expressed in elections, to achieve an agreement.

The president and Democrats should avoid the danger of hubris and overreaching. The Republicans must end the use or threats of legislative blackmail, extortion, obstruction, hostage-taking and willingness to force a default that could cause a crash because of an extremism and distemper that threatens to make the GOP a minority party for a generation.

Bipartisanship is preferable to constitutional confrontation. But if the only alternatives are to submit to legislative blackmail by Republicans or accept a disastrous national default, the authority of the president is constitutionally locked and loaded. The president would be supported by a large majority of voters if he chooses to use it, and if necessary, he should.