Politico has grown rapidly from a little-known startup company to one of the nation’s most popular online sources of political news. But it has been riding a wave of interest in a hot presidential campaign, so what happens to Politico after Nov. 4?

It will expand. Politico (politico.com) is to announce today that after Election Day, it will add reporters, editors, Web engineers and other employees; expand circulation of its newspaper edition in Washington; and print more often.

In the last few weeks, Politico has also quietly begun an experiment in sharing content and ad sales with newspapers.

After the election, “I anticipate some dip in our audience, but for our business model, it doesn’t really matter,” said Jim VandeHei, executive editor and co-founder of Politico. “We anticipate a nice surge on the revenue side.”