Today, without specifically connecting it to Netanyahu, the news is reporting that the formation of a new party (or alternatively his joining an existing party) is being explored to be led by Jonathan Pollard, who has supposedly expressed interest in a political career. This too, even without connecting it directly to Netanyahu, is being said to be a way of weakening Bennett.

I don't know much about Vinter's opinions and positions, but if the people who support him are any indication of his political positions, I suspect he wont be as much a challenge to Bennett as to the more right edge of Likud and to Smotritch.

Pollard on the other hand has been pretty outspoken in recent years and has been shown to be super extreme right wing. If he were to join an existing political party, I cannot see any party more appropriate than Otzma Yehudit of Itamar Ben Gvir, though that party too might not be right wing enough. And whether he joins Ben Gvir or another, or whether he forms a new party, again, considering his more extreme positions, I dont think he would be hurting Bennett much by running. Bennett's support seems to come from the softer, more liberal, right of the DL community, not the more extreme, more conservative, right. While it is not for me to say if Pollard or Vinter should or should not join politics and if so via which party, I dont think either will hurt Bennett much and both would more likely hurt the Likud and Smotritch. If Netanyahu wants to take away votes and support from Bennett he should find someone more centrist right to form a new party, such as maybe pushing a Gilad Erdan (whom Netanyahu is struggling with already) to leave Likud and form a party or maybe Tzippi Hotovely.