Does Maddow believe she/the state owns the means of production (classic definition of socialist) or does she just fancy herself a economic fascist?
After all, fascism is just one of socialism's many variants (not that they're completely identical.) If you define as socialist any ideology that advocates "socializing the means of production," then fascism is a socialist ideology.
The best description of the US government since the New Deal is fascist, in that the central theme has been authoritarian control of the economy by the Federal government, enabled by a totally dishonest "interpretation" of the Commerce Clause.
The New Deal also certainly imposed a significant amount of socialist/collectivist income redistribution, which was expanded in the following decades—especially by the "Great Society."
Nevertheless, some elements of free-market capitalism were also preserved—but only just enough to fool the gullible. Any substantive claim to free-market capitalism became questionable once an income tax was imposed, and the currency came under the control of a central bank. But the New Deal converted "free-market capitalism" into a museam exhibit that was still allowed some real use, under the watchful control of Federal and State bureacrats.