Sidelined from the halls of power after turning critical of President Donald Trump, two conservative firebrands escaped for a tropical getaway, where the fishing was good and the conspiracy theories flowed. Former Georgia Rep. Marjorie Taylor Greene and outgoing Kentucky Rep. Thomas Massie just returned from a vacation to Costa Rica with their spouses, and posted snaps of what they jokingly branded the "America First Pacific Summer Retreat." A video shows the pair strolling a beach in casual attire and heading out to sea on a fishing vessel. At one point, Massie appeared to reel in a hefty catch, drawing cheers and high-fives. “Took a great trip to see my good friend Marjorie Taylor Greene in Costa Rica,” Massie wrote on X on Friday. “We discussed the future of politics in America.” The laid-back scene took place thousands of miles from the U.S. Capitol, where the duo were among the small group of Republicans who challenged the president on lightning-rod issues — and paid a steep price.…