The fight over ObamaCare’s Medicaid expansion escalated Monday, as Texas’s Republican governor backed a lawsuit from Florida against the Obama administration. "When the federal government exceeds its constitutional authority, the States must take action,” Texas Gov. Greg Abbott said in a statement. “[I] commend Governor Rick Scott’s decision to take legal action to protect these important constitutional principles.” Last week, Scott announced he would sue the Obama administration over what he called an effort to illegally force Florida into expanding Medicaid under the Affordable Care Act. “It is appalling that President Obama would cut off federal healthcare dollars to Florida...