U.S. Senator Mary Landrieu (D-LA) speaks during a news conference after Hurricane Isaac in Belle Chasse, LouisianaBATON ROUGE, Louisiana (Reuters) – withIn the gun-friendly state of Louisiana, the backlash against President Barack Obama's proposed restrictions on firearms appears to be everywhere. It may be viewed within the frenzied sales and empty racks at Jim's Firearms retailer in the state capital, Baton Rouge, where buyers have rushed to make purchases as Congress weighs a couple of gun-keep watch over bills. It is evident in the state Legislature, where a collection of payments geared toward defending gun homeowners' rights were presented as a counter-punch to Obama's push in Washington. …