"Liberalism is a political and moral philosophy based on liberty, consent of the governed and equality before the law.[1][2][3] Liberals espouse a wide array of views depending on their understanding of these principles, but they generally support free markets, free trade, limited government, individual rights (including civil rights and human rights), capitalism, democracy, secularism, gender equality, racial equality, internationalism, freedom of speech, freedom of the press and freedom of religion."

In the US, the overton window is so far right that liberals are considered left of moderates. But liberals are not leftists, i.e. people who would support socialism. It's like

left --------------------- liberals --- moderates ---- right

                ^Scandinavian moderate

And US liberals and European liberals have quite different ideas about taxes, immigration, climate change, law and order. Europeans would not call Biden or Warren liberals. (Who would Europeans call a liberal? Maybe Paul Ryan, or Bloomberg).