Supreme Court Rejects Trio of Gun Rights Cases Plus: White House faces battle over EPA rules By Matt Cantor, Newser User Posted Feb 24, 2014 12:13 PM CST 94 comments Comments The Supreme Court won't hear a handful of gun-law cases. (AP Photo/Susan Walsh, File) (Newser) – In a blow to the NRA, the Supreme Court has opted not to hear a trio of cases challenging federal and state gun laws. Two involved NRA-backed challenges to laws limiting gun rights for people under 21, Reuters reports. One of those was a Texas law banning 18- to 20-year-olds from publicly carrying guns; the other addressed decades-old laws against gun sales to those under 21. A third case involved consumers' ability to challenge gun-sale laws. The high court didn't offer comment on its rejection of the cases, the AP notes. In other court news: Justices rejected an alleged drug lord's appeal against a Virginia retrial for capital murder. Justin Wolfe's initial conviction was overturned due to prosecutorial misconduct. Nor will justices hear an appeal by a man who was convicted under federal gambling laws. Lawrence DiCristina of New York says the laws cover only games of chance, whereas the game his underground group plays—poker—is about skill. So what is the court hearing? Arguments are taking place today over an Obama administration rule on pollution. The EPA requires companies developing pollution-boosting industrial sites to assess their carbon output. The Chamber of Commerce, which is challenging the measure along with some GOP-run states, says it "may be the costliest, most intrusive regulatory program the nation has yet seen." Several other states, as well as environmental groups, are backing the White House.