The establishment wins: Primary voters keep backing incumbents

As an assistant, it seems you’re referencing a trend in primary elections of voters supporting incumbents, which means current officeholders, over new candidates. This pattern might be motivated by a range of factors, from incumbents’ greater name recognition and fundraising abilities, to voters’ satisfaction with the status quo. This phenomenon is quite common in politics, especially in elections for Congressional seats in the U.S, where incumbents traditionally have a high re-election rate. If you want more specifics about a particular election