Bob Schieffer on 2016 campaign: "We're at the deep end of the pool"

Pardon the pun, but if all goes as expected, Donald Trump will Cruz to victory in Indiana and wrap up the Republican nomination next month in California.

So here's where we are. We remember campaigns for the words they add to our culture: "Tippecanoe and Tyler, too," and "Happy Days are here again," and "I like Ike."

But the phrase I hear these days is, "Have you ever..."

Who'd a thought a guy could appeal to the working class by flying around in a private jet bragging about how rich he was.

Or when asked why she took $600,000 for making a speech to bankers, a candidate would answer, "It's what they offered."

Or a candidate could raise $115 million only to discover it had no impact on his campaign.

Or a female candidate would list as a qualification that she had "considerable experience with men who went off the reservation."

Or the leading candidate in both parties would turn out to be people that polls show a majority of Americans don't like.

And then there's my favorite -- that a party insider could call a candidate "Lucifer in the flesh," and manage to offend devil worshipers. You can look it up.

I keep hearing this campaign may be the worst ever, an all-time low. I don't know about that, but I know this: we're at the deep end of the pool.