Forgive me for asking a non-grammar question.
But suppose you have the following:
I think we must raise taxes.
And we must spend more on health care.
And we must stop invading countries.
Regarding the bold, I would be tempted to paraphrase like this (We "must raise taxes"), since "I think" is implicit in anything that an author writes...it has to be what the author in question thinks. So there are three statements and all three of them (even the ones about health care and invasions) are technically "I think" statements.