SACRAMENTO - After an antagonistic debate colored by recall politics, the state Assembly on Tuesday approved controversial legislation to allow as many as 2 million undocumented immigrants to apply for California driver's licenses.The Senate is expected to concur on amendments and give final approval as early as today, and Gov. Gray Davis has promised to sign it, despite having vetoed similar legislation twice before because of law enforcement concerns.For more than two hours, lawmakers exchanged harsh words, with Republicans accusing Democrats of politicizing the bill to help the governor defeat the Oct. 7 recall and Democrats accusing Republicans of being...