If Trump becomes the Republican nominee - as Sasse said - then one will have to go third party to find a constitutional conservative.
Unlike Romney, McCain, two terms of W. Bush, Dole, and H.W. Bush all of whom were "constitutional conservatives" of the first order.
Right!
Without conserving the people who made America you have zero chance at preserving freedom.
Look at California. It used to be a place that show-cased Republican leadership. It gave us President Nixon in 1968, a former California Senator and President Reagan in 1980, a former California Governor. It was a "R" leaning state, it was a fantastic place.
Now, after being the primary landing zone for the "Fundamental Transformation" level immigration, it's almost a pure Democratic one party state. It used to have very good (constititonal) gun laws, to give only one example. In the late 1980s I bought a nice semi-auto military rilfe at B&B Guns in North Hollywood. Now? Some of the most draconian gun laws in the USA.
We have an existential crisis. Professing adherence to the Constitution while ignoring the root of the crisis, or not quite understanding it, will result in total permanent failure to "conserve freedom".
Rubio's pro-amnesty positions prefigure total failure. Cruz's on-again, off-again support for things like 500% more H1-B visas likewise show a profound failure to grapple with the issue of our day. And of course, many other issues Ted has faded on at the critical point.
There is a reason that Phyllis Shaffley is supporting Trump.