Democrat Barack Obama said Wednesday that as president he would spend $210 billion to create jobs in construction and environmental industries, as he tried to win over economically struggling voters.

Obama's investment would be over 10 years as part of two programs. The larger is $150 billion to create 5 million so-called "green collar" jobs to develop more environmentally friendly energy sources.

Sixty-billion dollars would go to a National Infrastructure Reinvestment Bank to rebuild highways, bridges,...