An american with a political ideology that is primarily moderate

The following is missing for the question to be complete:

yet more liberal on some issues is most likely to be a member of the:

Independent Party

Democratic Party

Republican Party

Whig Party

Answer: Democratic Party

Explanation: Democratic Party (USA) is one of the two leading, though historically not the only two, major parties in America today. It is a great opponent and competitor to the Republican Party, where they participate equally in every race for the post of President and for seats in all convocations. Not a rule, but usually these two parties alternate one after the other, after one or several terms. Historically, the politics of the Democratic Party has changed, today it is a modern party with liberal principles, moderate and adaptable, advocating for social and economic equality. So it has social principles, which is a feature of today's democratic parties in the world, though not a socialist one, because they advocate a kind of social equality and well-being for all within capitalism.