Question

once it was decided that the articles of confederation werent working, a new plan had to be worked out for a new constitution. two groups formed and began writing letters and articles for and against the new proposed constitution. the federalists published a series of essays to convince others to ____________ the ratification (approval) of the new constitution.
type your answer...

Explanation:

The sentence defines the term in parentheses (approval) as the meaning of the blank. The Federalists advocated for the formal approval of the new constitution, which is called ratification, so the word matching the definition "approval" is "support" (or more precisely, the action aligned with seeking approval here is to support, but the direct synonym/action that fits the context of convincing others to agree to ratification is to "support", and the key is that the word needed is a verb meaning to agree to/approve, which in this context is "support" or the exact action: the blank is filled with "support" (or more accurately, the term that fits is "endorse", but the most direct fit for the definition given is "support", and the context is Federalists convincing others to approve/ratify, so the word is "support").

Answer:

support