Sincerestly

You ARE a member of the Colbert Super PAC, aren't you? Good. That means you got his latest message, declaring that this new organization 'has been hailed in the national press as everything from "legal" to "dangerous."'
There's actually no particular language angle here, really, save that he signs the letter 'sincerestly'.

Just kidding. It's classic Colbertian poety, of course, through and through. That includes a nice bit of nouning:

Donate now. Donate often. Make a difference. Make a donate.

Yes, Stephen, together, let's make a better tomorrow, tomorrow.