The entire political campaign ended in a fiasco.
Here, the underlined phrase means-

• The entire political campaign ended in a fiasco.
- Here, the underlined phrase means- A complete failure.

• Ended in fiasco
- English Meaning: A complete failure; something planned that goes wrong.
- Bangla Meaning: কোনো উদ্যোগে চরম ব্যর্থতা; কলঙ্ককর পরিণতি।

• Ex. Sentence: The entire political campaign ended in a fiasco.
- Bangla Meaning: পুরো রাজনৈতিক প্রচারণাই ব্যর্থতায় শেষ হয়েছিল।

Source:
1. Accessible Dictionary by Bangla Academy.
2. Cambridge Dictionary.