The famously conservative Koch brothers, Charles and David, were among those libertarian-minded conservatives who sat out the 2016 presidential election out of distaste for Donald Trump.

They’ve since bristled at his policies on trade and immigration, as they prefer freer trade and looser borders.

But the brothers’ fortune comes from their Wichita, Kansas, industrial conglomerate, which does a lot of business with the government. And among major spenders on lobbying, their firm, it turns out, boosted its outlays the most this year.

Koch Cos. Public Sector was the eighth-highest spender on lobbying during the first quarter of 2019, spending $4.6 million.

But as a percentage of spending in first quarters of the past five years, the Kochs led the way, spending 27.6 percent of their five-year total this year.