Editorial: This political party has repeatedly expressed the view that increasing spending on education is a worthy goal.
Conclusion (So)
This party's policy is clearly inconsistent (i.e. they are contradicting themselves).
Evidence
On some occasions they've expressed the view that increasing spending on education is a worthy goal.
On other occasions, they've claimed that the government should not increase spending on education.
Evaluate
Is it really a contradiction to sometimes support increased spending on education and other times not to?
No, because the two situations might not be fair to compare.
Perhaps in the year 2010, schools were badly underfunded and so Party X supported increased funding for education.
And then in the year 2020, schools were operating with a huge budget surplus, so Party X opposed increased funding ("they already have enough funding, clearly!").
Or perhaps in the year 2010 there was a bill to increase spending on S.T.E.M. education, and Party X supported that, but in the year 2020 there was a bill to increase spending on racial sensitivity education and Party X opposed that.
Goal
In order for these two different occasions to be contradictory, the author has to assume that they're fair to compare. She has to assume that there wasn't a good reason why the Party switched from supporting increased spending in one case and opposed it in another.