Which of the following is a key criteria to determine who is “winning” the invisible primary?

The criteria of fundraising and standing in the polls is crucial in determining who is perceived as "winning" the invisible primary. The invisible primary refers to the period before the official primaries when candidates are vying for support within their party, often without being in the public eye or on the debate stage.

Successful fundraising indicates a candidate's ability to attract donations, which is essential for campaigning effectively and gaining visibility. High levels of financial support can showcase a candidate's viability to the party and potential supporters, giving them an edge over competitors. Furthermore, standing in the polls is indicative of a candidate’s current popularity and support among the electorate, which can influence endorsements and media coverage.

Together, strong fundraising efforts and favorable poll standings create a perception of momentum and viability, making them key indicators of success in the invisible primary phase. This combination of financial backing and public support can significantly impact a candidate's chances as they move closer to the primary elections.