New audience data from comScore says Americans' appetite for political news is heating up, and HuffPost Politics led all politics-focused news sites in September with nearly 10 million visitors.

From the press release:

"Interest in Political News sites spiked in September between President Obama’s jobs plan announcement and the heating up of the Republican presidential primary battled. The category rose 12 percent to 35.4 million visitors. HuffPost Politics ranked #1 in the category with 9.9 million visitors (up 8 percent), while CNN Politics drew 8.1 million (up 11 percent). ranked third with 4.8 million visitors (up 8 percent), followed by with 2.5 million (up 15 percent), The Economist Group with 2.5 million (up 4 percent) and with 1.6 million.”

Related: Central European News agency sent HuffPost UK invoices claiming its aggregation constituted a republishing of CEN stories without consent. HuffPost paid them, but spokesman now says it was "a paperwork error, not a change in policy."