Not blatantly, but there are signs of it even in the first book; and as the books go on, you can see almost in real time her political views shift from criticizing the system to defending it as she started becoming wealthy and benefiting from the system.

I highly recommend watching Shaun's 2 hour video on the subject, as it goes into great detail on the subject and makes for perfect podcast material.

Some highlights include:

• Obesity as a moral failing - want to make a character seem bad? Just make them fat!
• Masculine features as a negative trait for women (sound familiar?) - want to make a teenage girl bad (and ugly) but don't want to make her fat? Just talk over and over about her "mannish hands" and sharp jawline.
• Token minority characters that are often stereotypes or border on racism - the black kid is named Shacklebolt, the Asian girl is named two single syllable last names (might as well have called her Ching Chong), the 12 year old Irish kid is obsessed with turning drinks into whiskey and blowing stuff up, etc.
• The defense of the slavery of house elves using the exact same arguments that slave owners used before the Civil War in the US mentioned by somebody else, with a bonus criticism of Hermione as a girl with blue hair and pronouns for questioning and trying to change the system.
• There are no good or bad actions, only good or bad people. It's okay for the right people to use the torture spell, because they're the "good guys."
• And a resolution that basically resolves nothing. Harry doesn't kill Voldemort, he kills himself due to a magic technicality, and Harry goes on to become a magic cop to ensure the flawed system that the early books criticized doesn't change.