The Pushback Begins: Today, Senators Dole, Bunning, DeMint, Grassley, Sessions, and Vitter, all Republicans, wrote a letter to President Bush saying that more needs to be done to enforce the law, offering a variety of recommendations to the president. Sen. Dole declared that the “federal government’s failure to carry out the immigration laws on the books sends the message that this country is not really serious about securing our borders and communities and stemming the flow of illegal aliens." Sen. Sessions criticized the immigration bill as "failing to secure our borders." Keep all 6 in the "very unlikely to switch" column.