Who is Chuck Todd and why does Rush call him F. Chuck Todd?

Rush frequently mentioned "F. Chuck Todd." I have been unable to find out why he does that, but from what other people on the web say, I assume it's sort of saying "F*ck up" Todd or "F. up" Todd. He sort of explained it in his Aug 12, 2009 show:
RUSH: Carlos Watson not happy here. Carlos Watson, of course, the guy who said "the new N-word is 'socialism.'" (interruption) What does the F stand for? (laughing) Well, think of Chuck-U Schumer, all right? It's the best way I can explain what the F stands for in F. Chuck Todd.

Here's his bio from Wikipedia.
Charles David “Chuck” Todd (born April 8, 1972) is an American journalist, Chief White House Correspondent and political director for NBC News, and contributing editor to Meet the Press. He is an occasional contributor to other news outlets, including the Atlantic Monthly.

CareerPolitical campaigns
Before coming to the world of political reporting and analysis, Todd earned practical political experience on initiative campaigns in Florida and various national campaigns based in Washington, D.C. While in college, Todd worked for the 1992 presidential campaign of Senator Tom Harkin (D-Iowa) and later started part time at The Hotline.

The Hotline
From 1992 until March 12, 2007, Todd worked for National Journal's The Hotline, where he was editor-in-chief for six years. As part of his position, Todd also co-hosted, with John Mercurio, the webcast series Hotline TV, consisting of a daily show lasting between three and seven minutes and a weekly show ranging between 20 and 30 minutes. He became a frequent guest on political discussion shows, such as Hardball with Chris Matthews and Inside Politics with Judy Woodruff.

NBC News
Tim Russert brought Todd to NBC from The Hotline in March 2007. He became NBC News’ political director at that time. After Russert's death, Todd was a candidate to replace him as the host of NBC's Meet the Press, but David Gregory was ultimately selected for the job.

As NBC News Political Director, Todd often provides on-air political analysis on political discussion shows, including Morning Joe, Hardball with Chris Matthews, Meet the Press, NBC Nightly News with Brian Williams, Countdown with Keith Olbermann and The Rachel Maddow Show and blogs for MSNBC.com at "First Read." He also does a weekly Question and Answer ("Q&A") session with users at Newsvine.

On December 18, 2008, NBC announced that Todd would succeed Gregory as NBC News Chief White House Correspondent, partnering with Savannah Guthrie on the news beat. He retained his title as NBC News Political Director and was also named Contributing Editor to Meet the Press.

Todd was a focus of an August 2008 Los Angeles Times article paralleling Todd's rise to the rise of cable news networks in coverage of U.S. politics. The article noted the emergence of Todd's fans, deemed "Chuckolytes."

Todd is also co-author, with Sheldon Gawiser, of How Barack Obama Won: A State-by-State Guide to the Historic 2008 Presidential Election, published in 2009.

On July 6, 2009, former MSNBC television personality Dan Abrams launched a website service, Mediaite, reporting on media figures. The site ranks all TV-based journalists in America by influence. Todd ranks, as of October 2009, right before Mike Wallace as number five.

On January 11, 2010, Todd became co-host, with Savannah Guthrie, of The Daily Rundown on MSNBC, weekday mornings from 9 to 10 a.m. ET.

Personal
Todd is a native of Miami, Florida. He attended George Washington University from 1990 to 1994; although he majored in political science and minored in music, he did not graduate. Todd is an adjunct professor at Johns Hopkins University. He resides in Arlington, Virginia, with his wife, Kristian Denny Todd, daughter Margaret, and son Harrison. Kristian Denny Todd is a Democratic operative and communications professional