5 sentences

1. 他在党内担任重要职务。

   tā zài dǎng nèi dān​rèn zhòng​yào zhí​wù.

   He holds an important position within the Party.

   Source: Dong Chinese Dictionary

2. 这个政党内部存在着不同的派别。

   zhè​gè zhèng​dǎng nèi​bù cún​zài zhe bù​tóng de pài​bié.

   There are different factions within this political party.

   Source: Dong Chinese Dictionary

3. 这个政策遭到了党内当权派的反对。

   zhè​ge zhèng​cè zāo​dào le dǎng nèi dāng​quán​pài de fǎn​duì.

   This policy was opposed by the establishment within the party.

   Source: Dong Chinese Dictionary

4. 作为政坛元老，他在党内拥有极高的威望。

   zuò​wéi zhèng​tán yuán​lǎo, tā zài dǎng nèi yōng​yǒu jí gāo de wēi​wàng.

   As a political elder, he commands high prestige within the party.

   Source: Dong Chinese Dictionary

5. 纪律检察委员会负责对党内事务进行监督。

   jì​lǜ jiǎn​chá wěi​yuán​huì fù​zé duì dǎng nèi shì​wù jìn​xíng jiān​dū.

   The Commission for Discipline Inspection is responsible for supervising internal party affairs.

   Source: Dong Chinese Dictionary