The claim that the Minneapolis shooter is an antisemitic leftist and that 'this is the party of hate' is misleading because while the shooter exhibited antisemitic beliefs, sources do not clearly identify the shooter as a leftist or link them definitively to a specific political party.
The shooter is an antisemitic leftist. This is the party of hate.

Shooter left videos online, manifesto filled with with 'extremely violent thoughts'
Source: nbcnews.com
Key Evidence
The Minneapolis shooter had antisemitic slogans on their gun and posted videos with antisemitic content.
jpost.comjpost.comAntisemitic, slogans written on Minneapolis shooter's gun
timesofisrael.comtimesofisrael.comVideos linked to Minneapolis shooting suspect show antisemitic, anti-Israel...
The Anti-Defamation League confirmed antisemitic writings linked to the shooter.
jewishinsider.comjewishinsider.comADL: Minneapolis school shooter’s gun featured antisemitic, anti-Israel writings
NBC News reported violent thoughts in the shooter's manifesto but did not specify political affiliation.
nbcnews.comnbcnews.comShooter left videos online, manifesto filled with with 'extremely violent...
What the Evidence Shows
Multiple sources confirm that the Minneapolis shooter, identified as Robin Westman, expressed antisemitic and anti-Israel sentiments. For example, The Jerusalem Post and The Times of Israel report antisemitic slogans on the shooter's gun and videos containing antisemitic messages.jpost.comjpost.comAntisemitic, slogans written on Minneapolis shooter's gun
timesofisrael.comtimesofisrael.comVideos linked to Minneapolis shooting suspect show antisemitic, anti-Israel... The Anti-Defamation League (ADL) also confirms these antisemitic writings.+1 more
The shooter's manifesto and videos reveal violent thoughts and extremist views but do not clearly associate them with a leftist political ideology or party. NBC News describes the shooter leaving behind violent diaries and writings but does not specify political alignment.nbcnews.comnbcnews.comShooter left videos online, manifesto filled with with 'extremely violent...
Other sources discuss different shooters with extremist views linked to far-right or far-left ideologies, such as the Antioch shooter inspired by far-right extremist beliefs and a DC gunman linked to a far-left group.combatantisemitism.orgcombatantisemitism.orgFar-Left Group Linked to DC Gunman Faces Scrutiny for Antisemitic Incitement
adl.orgadl.orgAntioch, Tenn., Shooter Inspired by Broad Extremist Beliefs and Previous Mass... However, these are separate incidents and individuals.
There is no credible evidence in the provided sources that directly connects the Minneapolis shooter to any political party or definitively labels them as a leftist. The phrase "this is the party of hate" is an unsubstantiated generalization without supporting evidence from these reports.
Therefore, while antisemitism is clearly documented in relation to the Minneapolis shooter, attributing their ideology to a specific political party or labeling them as a leftist is not supported by the available evidence and thus misleading.