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A sign showing the price for gasoline is displayed at a Shell gas station on April 27, 2011 in San Francisco, California.

Both houses of Congress are back in session tomorrow. Senate Democrats are pushing to end subsidies to oil companies, while House Republicans look at reversing the moratorium on deep-water drilling. President Obama travels to Texas to seek support for immigration reform. Will Congress take up a plan to change the immigration system before the 2012 election? Also at the top of the agenda: debt ceiling negotiations. Here with a look at what's ahead on the legislative agenda is Politico senior editor David Mark.