This move by Sen. Hirono follows what is becoming a well worn pattern in Hawaii politics. In order for politicians in this town to receive the necessary monies from progressive groups looking to dump cash into the next couple of election cycles, candidates must show their dedication to the progressive cause. Dedication to the cause can include any and all opposition to anything Pres. Trump puts forward, even if it is a viable Ambassadorial candidate for Japan. 
Now does this mean that progressive politics in Hawaii is bad or good? That needs to be decided upon by the voters themselves when they go to the ballot box in 2018 and beyond. But be aware that this is where a lot of what you see happening at all levels of our county and state government is coming from. It's about the money and where these guys can get it.