Trump's ceiling, Cruz's rise, Rubio's last chance

The postulate that Trump's ceiling of support is somewhere between 35 and 40% has been, and continues to be, borne out by the polling and the results.  The latest:

Donald Trump’s facing a wall within his party, with Republicans who don’t currently support him far more apt to prefer Ted Cruz or Marco Rubio in a two-way race -- or even to favor a contested convention to block Trump’s nomination. 

Trump continues to lead in a new ABC News/Washington Post poll, with 34 percent of Republicans and Republican-leaning Independents who are registered to vote saying they’d like to see him win the nomination. But he trails both Cruz and Rubio one-on-one. And preferences for Cruz, Rubio and John Kasich have grown as others have left the race, while Trump’s support has essentially remained unchanged for months.

Lots of in-the-knowers question the premise that Trump has a ceiling, or even whether it matters, but let's look at the numbers ... 

Iowa's caucus results were Cruz 27.6%, Trump 24.3 and Rubio 23.1.  Since that time -- just five weeks ago -- Trump finished first in NH with 35.3%, first in SC with 32.4, first in Nevada with 46.1, first in Alabama with 43.4, second in Alaska behind Cruz, 33.5 to 36.4%, first in Arkansas with 32.8, first in Georgia with 38.8 and in Massachusetts with 49.3, first in Tennessee with 38.9, first in Virginia with 34.7, and first in Vermont with 32.7%.

He lost Texas and Oklahoma to Ted Cruz by 26.7 - 43.8% and 28.3 - 34.4%, respectively, and he lost Minnesota to both Rubio and Cruz, ending third with 21.3%, and Puerto Rico by a mile, 13-71 to Rubio.  These last two represent Trump's low-water marks to date.

Last Saturday he lost Kansas and Maine to Cruz by wide margins, 23.3% to 48.2, and 32.6 to 45.9%, but won Louisiana and Kentucky with 41.4 and 35.9%.

Throwing out the high (Massachusetts) and the low (Puerto Rico) and averaging the remaining produces a 33.46 average percentage (even if averaging percentages is a substandard evaluation method, it tells us something).  The only way we'll know what the ceiling is for Trump is when the Republicans boil it down to two.  Delegate counts are a different story, and Trump leads Cruz by a 384-300 margin, with Rubio well back in third holding 150 delegates and Kasich, lapped a couple of times by the field, at 37.

Michigan and Mississippi both poll strongly for Trump, as does Idaho and Hawaii (no polling there) also voting today.  But the numbers are very consistent: 30% to 40% for Trump and the rest divided among the remaining field.  So there will be louder calls for mano y mano with Cruz tonight, and a week and a day from today, unless Rubio can win Florida in some kind of convincing fashion, and he will be coming from well behind to do so.

The GOP debate just ahead of the Florida primary happens Thursday night in Coral Gables, and Florida's devout Cuban-Republican contingent will be as riveted to the action as any.  Rubio will bear the brunt of the attacks from Trump and Cruz in a somewhat altered dynamic.  There may be some snarking at each other in Spanish (I sure hope so).

It's entirely possible that a week from tomorrow, Donald Trump and Ted Cruz and Hillary Clinton are the last three people standing for the presidency.

Last night's town hall, Michigan votes today, and the debate Wednesday

-- The town hall format, with contestants questioned separately by the moderator and selected audience members, demonstrates again its superiority over both candidates' arm-waving and shouting from podiums.  There is no interrupting, hence there are no misused allegations of sexism (satire, yes; uncomfortably close to reality.  Not the virtual reality that dwells in the fevered minds of the SHills at Blu Koolaid Drinkers Revue).

Both candidates showed well.  Bernie stood out simply for his sincere and direct stands that go against the doctrine held by the average Fox viewer.  Hillary was grilled over Libya and her emails, as predicted, but emerged unscathed.  The Twitter responses ranged from the customary unhinged conservatives freaking out over soshulism or Benghazi or abortion -- a topic mentioned for the first time in a Democratic debate or forum -- to Republicans saying both Clinton and Sanders were their second choices after Trump, to the spinners for both blue sides working overtime.  It was one of the more diverse ideological event hashtags I've followed during this cycle.

-- Another stellar performance by him and another adequate performance by her is unlikely to move the needle in Michigan or Mississippi, both of which are casting ballots today.  There will be more calls for Sanders to pack it in when these states get called shortly after the polls close tonight, but with Florida, Illinois, Missouri, North Carolina, and Ohio all on deck to vote next Tuesday, no verdict will be rendered on his campaign's fate before then.

But it shouldn't be long after that.

Update: Mark Kleiman is ready to sign the death certificate.

-- Debate night is Wednesday in Miami with Amazon's Washington Post and Univision moderating.  The WaPo has made no secret of its Hillary bias.

The GOP get their own post coming up.