They even had clips of Nixon announcing his candidacy.是什么意思？

They even had clips of Nixon announcing his candidacy.

新闻中还配有尼克松宣布竞选的录音剪辑.

they

pron. 他/她/它们，人们，大家，政府，当局，她们；

例句
The storms had abated by the time they rounded Cape Horn.
他们绕过合恩角时，暴风雨已经减弱。

even

adv. 甚至，更加， 即使，恰巧在…时候；adj. 公平的，平坦的， 偶数的，平均的；vt. 使平坦，使相等；vi. 变平，成为相等；

例句
In his later life he became even more absent-minded.
他晚年变得愈加健忘了。

had

v. 有（ have的过去式和过去分词 ），（亲属关系中）接受，拿，买到；

例句
He claimed that his parents had abandoned him...
他声称父母遗弃了他。

clips

n. 剪（ clip的名词复数 ），剪短，剪报，（塑料或金属的） 夹子；v. 用别针别在某物上，用夹子夹在某物上（ clip的第三人称单数 ），剪掉，缩短，给…剪毛（或发）；

例句
It's a noisy place with film clips showing constantly on one of the cafe's giant screens...
这个咖啡馆很嘈杂，室内的一个大屏幕上不停地播放着电影片断。

of

prep. 关于，属于…的，由…制成；aux. 助动词 [非标准用语、方言] =have [主用于虚拟语气]；

例句
He did have a real knowledge of the country...
他对该国的确知之甚多。

Nixon

n. 尼克松（美国第37任总统(1969-1974）)；

例句
The gift shop's biggest seller is a photo of Nixon meeting Presley.
这家礼品店最畅销的商品是尼克松会见猫王普雷斯利的照片。

announcing

v. 宣布，宣告，发表( announce的现在分词 )，（尤指通过广播）通知，通报…到达，声称；

例句
I think he made a tactical blunder by announcing it so far ahead of time.
我认为他在时机远未成熟时就把这事说了出去是一种失策。

his

pron. (he的所有格)他的，(he的物主代词)他的东西；det. 属于他的，用于名词前，自己的，指某人的，上帝的；

例句
He claimed that his parents had abandoned him...
他声称父母遗弃了他。

candidacy

n. 候选人资格，候选人的地位；

例句
Today he is formally announcing his candidacy for President.
今天他将正式宣布参加总统竞选。