Hate to spoil any surprises, but as a general rule, politicians don't book an NPC press conference to announce they're not running for president.
The L.A. Times today mentions Barr in talking about Ron Paul's forces opposing Sen. John McCain inside the GOP:
Paul's candidacy [is] a reflection of a powerful lingering dissatisfaction with the Arizona senator among the party's most conservative conservatives. . . . [T]hat situation could be exacerbated by today's expected announcement from former Republican Rep. Bob Barr of Georgia for the Libertarian Party's presidential nod, a slot held by Paul in 1988.
Ralph Z. Hallow of The Washington Times has a story about Republicans who fear the potential impact of a Barr LP candidacy:
Republicans, both publicly and behind the scenes, are saying that a Barr run could hurt him financially and sink Mr. McCain's Republican candidacy in the general election, likely against Sen. Barack Obama.
Former House Speaker Newt Gingrich told The Times today that "Bob Barr will make it marginally easier for Barack Obama to become president. That outcome threatens every libertarian value Barr professes to champion."
Electing the co-author of McCain-Feingold would threaten no libertarian values?BTW, back in February, I was the first journalist to report on the "Draft Barr" movement that led to this campaign. That movement was hatched during CPAC. I first heard about it Feb. 8, a few hours after Barr introduced Ron Paul: