Ron Paul (Robert F. Bukaty/AP)

Former congressman Ron Paul (R-Tex.), in a new fundraising e-mail for his Campaign for Liberty, plays up his son's status as a "frontrunner" for president in 2016.

The e-mail focuses on the CFL's decision to resist the Internal Revenue Services's call for it to disclose its donors.

In the course of the e-mail, Ron Paul notes the progress made by his supporters and cites members of the Senate and House who hold similar viewpoints -- including one Sen. Rand Paul (R-Ky.):

Only a few years ago, you and I were barely a “blip” on the political screen.

But there’s no denying things have changed, when you consider:

*** Today, we see a growing crop of new Liberty Movement supporters like Rand Paul (R-KY), Mike Lee (R-UT), and Ted Cruz (R-TX) in the U.S. Senate;

*** In the U.S. House, there’s Congressmen Justin Amash (R-MI) and Thomas Massie (R-KY).

*** My son, Senator Rand Paul (R-KY), is now considered a frontrunner for President in 2016!

Later in the e-mail, Ron Paul requests an "IMMEDIATE influx of funds," including donations of $100 or more.

Rand Paul has taken care at times to distance his politics from those of his dad -- particularly when it comes to foreign policy. Rand Paul also declared recently that he wouldn't continue answering questions about his father and where their political views align or diverge.