Obama calls on Congress to raise minimum wage

US President Barack Obama has visited a Maryland Costco store to promote his proposal to increase the federal minimum wage rates.

The US leader proposed raising the federal minimum wage rate to $10.10 per hour (£6.09) over the current $7.25 during his annual State of the Union address on Tuesday.

On Wednesday, Mr Obama told Costco employees he planned to bypass Congress and issue an executive order increasing the minimum wage for workers employed by federal contractors.

"If you work hard, you should be able to pay your rent, buy your groceries, look after your kids," he said.