Hollywood celebrities and prominent corporate executives have poured thousands of dollars into the campaign of former Rep. Nick Lampson (D-Texas) to knock off Rep. Tom DeLay (R-Texas). Screenwriter and producer Norman Lear, director Rob Reiner, actress and singer Barbara Streisand and musician Don Henley have written checks to Lampson, according to politicalmoneyline.com, a website that tracks campaign contributions. Reiner and Streisand kicked in $1,000, and Lear and Henley sent Lampson $4,200. While Democrats have courted Hollywood stars in recent years, the moguls’ money has usually flowed to presidential candidates, the national party or the congressional fundraising committees. As a rule,...