In March 2008, Umunna was adopted as the Labour Party's prospective parliamentary candidate for Streatham.
At the 2010 general election, he was elected Member of Parliament (MP) for Streatham with a 3,259 majority; he gave his maiden speech on 2 June 2010.
He took a particular interest in economic policy and reform of the City.

Umunna described himself as being "One Nation Labour" and has written articles promoting the "Blue Labour" trend.
He argued the Conservative-led coalition government should revise its programme of fiscal consolidation, take a tougher stance with the British banking industry and take action to transform the credit ratings agency market.

Umunna was one of 63 Labour MPs to nominate Ed Miliband in the 2010 Labour leadership election to succeed Gordon Brown as party leader.

In June 2010, Umunna was elected as a member of the Treasury Select Committee.
In January 2011, he questioned the chief executive of Barclays, Bob Diamond, in relation to alleged tax avoidance activities by the bank during which he disclosed that the bank used over 300 subsidiary companies in offshore jurisdictions.
In response to his question, Diamond stated in February 2011 that Barclays had paid £113m in UK corporation tax in 2009, despite making £11.6bn in profit.
Umunna held this position on the Select Committee until his appointment as Shadow Minister for Small Business and Enterprise.
In March 2008, Umunna was adopted as the Labour Party's prospective parliamentary candidate for Streatham. At the 2010 general election, he was elected Member of Parliament (MP) for Streatham with a 3,259 majority; he gave his maiden speech on 2 June 2010. He took a particular interest in economic policy and reform of the City.
Umunna described himself as being "One Nation Labour" and has written articles promoting the "Blue Labour" trend. He argued the Conservative-led coalition government should revise its programme of fiscal consolidation, take a tougher stance with the British banking industry and take action to transform the credit ratings agency market. 
Umunna was one of 63 Labour MPs to nominate Ed Miliband in the 2010 Labour leadership election to succeed Gordon Brown as party leader.
In June 2010, Umunna was elected as a member of the Treasury Select Committee. In January 2011, he questioned the chief executive of Barclays, Bob Diamond, in relation to alleged tax avoidance activities by the bank during which he disclosed that the bank used over 300 subsidiary companies in offshore jurisdictions. In response to his question, Diamond stated in February 2011 that Barclays had paid £113m in UK corporation tax in 2009, despite making £11.6bn in profit. Umunna held this position on the Select Committee until his appointment as Shadow Minister for Small Business and Enterprise.
Chuka Umunna