The US consumer is flashing red flags all over the place

Luke Sharrett/Bloomberg via Getty ImagesWalmart's dismal earnings report was the latest in a growing list of signs the US consumer is getting fatigued.The economy is also contending with weak retail sales, falling sentiment, and a contracting job market.Sign up for First Trade, Business Insider's daily markets newsletter.When the US consumer is weakening, Walmart is usually one of the last dominoes to fall.When economic conditions get tough, low-income shoppers rely on it even more. It's also be