This blog is closed now, thanks for following along. You can find all of our US elections coverage here.

• Don’t miss important US election coverage. Get our free app and sign up for election alerts

A lot of money has been spent on this year’s elections.

Only 150 billionaire families have contributed $1.9bn in support of presidential and congressional candidates, according to a new report from Americans for Tax Fairness.

Of this giant figure 72% went to support Republicans compared with the 22% spent on Democrats.