Comments from Brainard:

Brainard
  • Recent risks have brought important downside risks for US economy, including policy uncertainty
  • Recent US inflation indicators have been disappointing, making it important to sustain momentum
  • Most likely path for the US economy remains solid
  • The latest data suggest that consumer spending is robust, and consumer confidence is high
  • Downside risks could weigh on US economy
  • Low inflation expectations can create a self-fulfilling dynamic
  • US financial conditions remain supportive
  • Full text

I agree with everything Brainard writes here, the problem is that all of this was equally true in December, when the Fed was hiking.

Quotable:

"Basic principles of risk management in a low neutral rate environment with compressed conventional policy space would argue for softening the expected path of policy when risks shift to the downside."