As the Republican-controlled House struggles to gain support for its Obamacare replacement bill before moving on to cutting taxes, Majority Leader Kevin McCarthy told CNBC on Monday his party's agenda is all about growing the economy.

If economic growth were to advance at a faster pace, 3.5 to 4 percent, "all these problems" the nation faces financially "will go away," the Republican congressman said on "Squawk Box." "The future of where we're going is so much better than where we are," he added.