Of course there isn't. Liberalism in its purest form (as espoused by Hayek, say) is, in effect, free market capitalism with a light but universally applicable (no "special cases", as those lead to totalitarianism) set of regulations to prevent bad actors (e.g. hey, let's put heroin in baby formula so it's really more-ish).
There's this odd commingling of the concepts of socialism and liberalism in the general populace's minds, for some reason. The two could not be more antithetical.
As to the rest of it - the US is neither capitalist nor liberal. It's corporatist, with a distinct socialist bent, but not where people usually point the finger. "Obamacare" is not socialist, it's liberal, as a core concept of liberalism is that the state should fund things that people cannot or will not fund for themselves, like roads and healthcare. Protectionist policies to keep the banks, agribusinesses and other without-legislation-to-protect them unprofitable enterprises ARE socialist, as they centralise control of industrial and economic output into government, and allow businesses that would not survive in a true free market to prosper.
Rant over.