COLORADO SPRINGS, COLO. — The Koch brothers and their 700 major donors are doubling down on their Senate spending, launching million dollar-plus ad buys to help Republicans in three battleground states.

Freedom Partners Action Fund, the main super-PAC for the donor network helmed by billionaire brothers Charles and David Koch, is launching three separate seven-figure ad campaigns to help Republican senators competing in the Nevada, Ohio and Pennsylvania races.

The Koch network has already spent more than $24 million in Senate races and has advertising reservations for the fall totaling at least $42 million.

“Whether it’s putting the special interests before taxpayers’ interest, or making tough times even harder with harmful tax-and-spend policies, it’s clear that Catherine Cortez Masto, Ted Strickland and Katie McGinty would only continue the failed policies that rig the system for the well-off and well-connected," said Koch network spokesman James Davis, who is here attending the Kochs' summer donor retreat at a luxury resort in the foothills of the Rocky Mountains.

"These policies represent everything that’s wrong with Washington and these candidates are promising more of the same."

In Nevada, the Koch network is making a $1.2 million TV and digital buy titled “Nineteen” to support Republican Rep. Joe Heck. Nineteen is the average hourly earnings of an Uber driver in Nevada, the network said in a statement.

"The ad underscores the influence of special interests on Catherine Cortez Masto and how out of touch she is with hard working Nevadans," the Koch network added.

An additional $1.4 million TV and digital buy in Ohio — aimed to help incumbent Sen. Rob PortmanRob PortmanGOP senators bristle at Trump's Medicaid cuts Overnight Energy: Trump budget takes flak over oil provisions GOP senators knock Trump's budget proposal MORE (R) — shows how, as governor, Democrat Ted Strickland "ransacked the state’s budget surplus and then raised taxes and fees on Ohioans who were already struggling to make ends meet," the network said.

And in Pennsylvania, the Koch network is running a $1.3 million TV and digital attack ad that paints the Democratic candidate in the state's Senate race, Katie McGinty, as a public official who steered subsidies to the "favored few at the expense of Pennsylvania taxpayers."

The massive Koch investment in saving the Republicans' control over the Senate goes some way to making up for the network's decision not to support Donald TrumpDonald TrumpPoll: More people view NATO favorably EPA chief jabs California’s environment push David Letterman: ‘Makes me sick’ that Trump represents us MORE in the race for the White House against Democrat Hillary ClintonHillary Rodham ClintonHannity: I won't discuss Seth Rich story for now "out of respect for the family" Clinton slams Trump's budget: 'An unimaginable level of cruelty' Trump’s crisis of legitimacy MORE.

The Koch network, despite pressure from a number of its donors, has decided it won't spend a penny of its $250 million political and policy budget for the 2016 cycle on supporting Trump, the Republican nominee.